{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390486852",
    "entityType": "User",
    "nonce": "0x3fe39881ff4e44c7e28637ed0cd9832a904c64e0b4efa7f767e339c6af43feae",
    "signature": "0x3c7c2e25b3fb84816dc4dad9b6d3699b319c4d1dce05761c9ee897e382e198d019728e8499ce822b83cd3f0e8fbc9d060c6f73d87aaf6b48402f6741d80e8a331b",
    "signer": "0xDc3E8455192174BB859F815e8840855e17449589",
    "userId": "267643931"
  }
}