{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x167645d15b2c7efc355b6b209c12fcb190a9a505f815310494059c46b490a93d",
    "signature": "0x327993fe39321ff9dc6b0ff9ec599cfbdcedbfa14211d503d92d830f0dbf0b43441929a1b961b2c91d7ad7ae25a923e775ddb1e7dc83f357b85c0ffd7922c8281c",
    "signer": "0x294F540CE80e30CBc9Fb7bEA94F956ABdEcdEf68",
    "userId": "809640913"
  }
}