{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "529043491",
    "entityType": "User",
    "nonce": "0x891d81cb56db05379349b1663d57427f1cb2b64711bbd8c022349188cea5c08d",
    "signature": "0xacf1b36a672aabfbe6fdd2ddbee8957e148310d044c36590388037e99bad869e317f75482473db1bce5dda55deb07e2b40d34d187082683b6e27b266f82066001c",
    "signer": "0x018849A3d6594093B7646022836BaaDF36aA36Ad",
    "userId": "702391481"
  }
}