{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x16e122d7706861e6e80874a91132249beeb2b69622206e50f946cd67c98fe854",
    "signature": "0xa1c5012f22355652c58438c70e94d9e3e0682785a06969ce8a9682ce22b0ff5e5e296b340da52e391dfcc147f2d41dac38f23c84df63e53fa1cef9ee6837fb6e1c",
    "signer": "0xfA5D278f39d7A517D2788A929416de39C7aD21ba",
    "userId": "651798338"
  }
}