{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22193",
    "entityType": "User",
    "nonce": "0x750b9d85fac94ee278a40712fa53ee3952bc8ff36a82b6f8e048b57cfadc2606",
    "signature": "0xdfba5df8783ac7b1058a8f3e8752f9ab491a72cdea72fcdd34072c9a4db14f76260ae77d418345fbb8904fcccb67e270c09ab372a02a3f45419116005c36ccdb1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}