{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x7f6cb06b3513e9ab5007f2c57ccc3be3d02f1bbe44c234d292fd1ff45539fc8f",
    "signature": "0xbd97eda8b6b86c1803a814d3bf50814230eadf876186212b3e5a29891d84dc8149eb53e7d2b8e8e93fa1ddea80f328da48fe324e40a369fd2773d3334a7c42071b",
    "signer": "0xE00d35cDEf561168f54846Ecf996dD5dc728fF14",
    "userId": "702802703"
  }
}