{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x72f9f0c1889dd66b7ccabc6b58c3d3d714d0ea888d50cc4194b2ef16b95e8119",
    "signature": "0xfff159a43c929fa105c402eb09a075ff4e21ef196c5ea6097315166c50e02fd03c86bbfdc02a11e2c002b0d693b66c5256278e8f9b7ed2f72e9ec63a8d841b2c1b",
    "signer": "0x914c1658bB5967D43E73304cD48EFa424776a6C8",
    "userId": "216111760"
  }
}