{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "841550177",
    "entityType": "User",
    "nonce": "0xb0dddd47e7e37e9dd7a31bc30eebeed15e44be7f6871b54a7353abf8509dbdf6",
    "signature": "0x1ab8d86016691d37c482286a9bae9d0c595f92b27ed16be206fba552f50faaed6ef4fbcbb3dc989c302d5972b635259f1ee7d9152f1fa5eec9e14a8d30ab59771b",
    "signer": "0x856dD60453733C7356ce2Cc02B884a7111eC7E6D",
    "userId": "15192427"
  }
}