{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372264",
    "entityType": "User",
    "nonce": "0x53bd7c510de4566bc5f9235a3775e783d1214a670a112ece14a742d2ed1b4cc9",
    "signature": "0x8646bf09a5dac858dfab418b7e0633edd841055a22f8fa44e80cd9ae5e2b19a237e890dc0740648e9bbffbd255a9d2346862ed7acd98c51b597466e01945cf8d1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}