{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67314",
    "entityType": "User",
    "nonce": "0xcc3a0cd06804b3a9291a498e7456db4c0d3edf60ca40ce3a912411d7318b543d",
    "signature": "0xec3f3357b530980a02a70cebb038823d63eea618a10f95ce36dcbfec103532c65a302ca91b1b52177511533c2354d80400d0fc1bb228b1a0367747d6c5818dff1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}