{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0xb76f9b555eb8a2f1f108050b0f3411f48d62bd7910138ded021f9ddbf7ffe836",
    "signature": "0xe127822a6e7ad1c125f2216c18c3e203e3615f5f2a7d5581e0e0e69a9e6203a2733bc1f76e03d2002d229ecae9892875398805b184f09d731e34fd2ef5a4712d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}