{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787975550",
    "entityType": "User",
    "nonce": "0xe1182c720d7f14d55ad5ef232e1998aa40d35db5435912a6c5d75e67bcfbe838",
    "signature": "0x0f04321f12eb2db27a6e0ac2e2f8de7d17cb6810af8e32924540a4f185d1753a487f9a9b377f717b1dbf1c0a08efeb8e282a304626bf9037145385a898ed58271c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}