{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "947140631",
    "entityType": "User",
    "nonce": "0xec9029d906e1458471f3bcd833b43afa907d943c60dc22c7cacc6b4aed426b16",
    "signature": "0xe1c28e2b1e92697ecae420ffbe4c95340685ef7156f0e378d7e4499a62ef9aee4ea91f894139ddf10a0e2739182e1734a163dd3f057b97b7168574a3976345d91b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}