{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "249889",
    "entityType": "User",
    "nonce": "0x395190d79ae226e74558228c4eb6e051cf18ae7ae1161fdc1bf716bd53a00782",
    "signature": "0xc0d5bdbf2ed801b9063e7f7693ae044f0800196e1073ef33cdb344fb70f063034b78df2a49ebe4d78349ca6c048d2e6a70d5f17b2b42a11702bf92a4f59420e01c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}