{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650714154",
    "entityType": "User",
    "nonce": "0x86ae3885fdb5428135b468a3f1064406e09ce5bc25750f45831720087349336f",
    "signature": "0xeda78aa79d39c170710728cbeeb5bde829d55df5339416ecc33eb644722c85b96cace5eca1852276ccdd7b502e603ae680db2b7f6b6ffa11cf331b4edd24badb1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}