{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x7f3192016c30abbf13990b2f7031526e0f90cb54f88d055c1fc07832c1efd3dc",
    "signature": "0x939b0d2b72eba06226bce4754067fac68584ed94f702ad0f489a9ac7deae33b906df057b59f323084699abf2c8ba186873401cf9fcbe16b4bfd8c4dc9671f0d21b",
    "signer": "0x71cC8cEA691e8Ca617E9644Eb36f54087b0b4CEf",
    "userId": "907806071"
  }
}