{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52713",
    "entityType": "User",
    "nonce": "0xa5445c0e5a8df28c8d9aad0023459f10cf53e193df715fdc00b26051b6c279f5",
    "signature": "0x9e065b117db60047d62837db5c684c505af030f14e75187b1437246ee6b3d2dd3e272ae2ecd43fefb82b6116e56e1043ade1bca5d8aecfec18071c60f65039ee1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}