{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0x76f07e7556a57cc10a1bde1803dd58062c60f977c82189ea1ca6d4a3cd6c5184",
    "signature": "0xb13665aaa7e02aaa4037d8499b2fbcd5519b3cd49e068cc422703c4b4df27be0680dca495890a6942eacdfedea8c8583196f530c18df74bfde77dc8cf8ce97051c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}