{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37803",
    "entityType": "User",
    "nonce": "0xfc153c64b2a276c86df415b135569edce35a15a5e17c69d0bb54b24f5f4a4af2",
    "signature": "0x329283f47d6b02fa895635dd67df62116264a25dff315a2940dce718515c54731e99d3e95d12fdafe217bf8f1513b6df952dd1ec40427454cc9d532ee9015f441c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}