{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x5e7a259ad02423c2067379c945e9bc240cf82970da8f5772d5e8aaa615858d7c",
    "signature": "0xc41bb58e5b6afe36a928058130f55080938442751361bc6b50c3825cdd2f49945c9bfddc6400816e843a917b1f4424f94e5672c3a4dfbc6e4bfe4717acf52b5a1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}