{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305192",
    "entityType": "User",
    "nonce": "0x925f57f22eac19d1f98a71cad5a2a3d40ddca4aefbbdbc9336544154877691dc",
    "signature": "0x13c040d6ab3fe7793d27ebe24e4269a69ec1ffef57e185cf9afef4702efab8d766325feb8f286b26f6c5dda29539f7711879cf99c4200a7e455b3ae0b7a86b831c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}