{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb83ec466dc2412426e1656e60a129b3faee6d809171f6e4871b61d4faba259b1",
    "signature": "0xbb32fa5da5adff69f1beba3ce45a916886719f87cc466e4ef6e5e4ca6cecb1212c8def7c8db2a7d0a686268e2d4f4987ef7e07ff5bce0387dae327e51a4d64c21b",
    "signer": "0x8a00178391c182B22F97d7dCcAa7857CcF408377",
    "userId": "900896166"
  }
}