{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfffc22d2d72ea6a367b06de2a06ad8e1ffecd70a5f26d65e2e154d98e8b48c17",
    "signature": "0x023e4d277be997f16a25c4aedb851e4fe608fec422a44330944492d543998d0b7bad6e41047ad07d8a17eda17988567b71de124d42ac8417ed3c28f40a8a59b01c",
    "signer": "0x0771adb9A6E17BA9aB1F311E64BcA474bCE02346",
    "userId": "414202089"
  }
}