{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9bcc41963078e14def033bc0013da2d1199f637b9d513b297e8aa151d399b50",
    "signature": "0x29b2de5992b39f2c93e1ab915496a2258dca41bd9fd1be3808325effbfae399201ec9f548fdeec2580777a8501a66e7c917c45c17511bc62787cda7a115dcca11b",
    "signer": "0xd58F382d75921256639182Ec33927455df4C37fB",
    "userId": "399419866"
  }
}