  We discuss an algorithm whereby the massive galaxy clusters detected in the
SRG/eROSITA all-sky survey are identified and their photometric redshifts are
estimated. For this purpose, we use photometric redshift estimates for galaxies
and WISE forced photometry. To estimate the algorithm operation quality, we
used a sample of 634 massive galaxy clusters from the Planck survey with known
spectroscopic redshifts in the range $0.1 < z_{spec} < 0.6$. The accuracy of
the photometric redshift estimates for this sample is $\delta
z_{phot}/(1+z_{phot}) \approx 0.5$%, the fraction of large deviations is 1.3%.
We show that these large deviations arise mainly from the projections of galaxy
clusters or other large-scale structures at different redshifts in the X-ray
source field. Measuring the infrared (IR) luminosities of galaxy clusters
allows one to estimate the reliability of the optical identification of the
clusters detected in the SRG/eROSITA survey and to obtain an additional
independent measurement of their total gravitational masses, $M_{500}$. We show
that the masses $M_{500}$ of the galaxy clusters estimated from their IR
luminosity measurements have an accuracy $\sigma_{\lg\,M_{500}} = 0.124$,
comparable to the accuracy of the mass estimation for the galaxy clusters from
their X-ray luminosities.
