{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136394",
    "entityType": "User",
    "nonce": "0x1ad2c76e49d6d5fa63fb9a79cf0392e532fc581f6f9ff4dec55d53ddba794249",
    "signature": "0x01034a81d231013ad3b770da48806f73a571b44f9659d9313ab101f095a19f4b5d34315954571dd27a406b9b767b47e512996a38665ca254ddd7435f618e29eb1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}