{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681866568",
    "entityType": "User",
    "nonce": "0x1765cb56fc6829fab02f55fcfcdb22394555a343e59875c7f6f6fbaeaf230a26",
    "signature": "0xc9a9865656cda4a2114966950bde97e83ff428a2f4ce7ca80e02e1b9528ec48905de209b3e0c710c1d1e6240b3a2de3b9f9128bcfb65d1a2b65bb2ec2d1602ee1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}