{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x1539e8d3092a3963f87be2784bfc4f7240cbbe9994a9f73cefc3d9ea68a224ec",
    "signature": "0x767cf865c0ec75e9fa8567879198b5d99f4c82965617eca65ec4b30714e1dc886a111fb795c5def2e09b43ed8c5ee7eb81fa3380d28ad2761dbe1d118c97312e1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}