{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x541508b3d2b63c34bd17e4ce6288ab67d24a3c906fb4da2152db9ffbfdeef664",
    "signature": "0x87c9eef5eb73299bf624c4d527ae6d9c62837d74a79693feebb63f1524fc35805415c443b24c84eccafaefa3532c4a5faff09fa4fcf9cb795fa54f715b38551a1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}