{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0x845b5f54b97e1eb17e71436f46be6b64b0dc9c101d612887a68dd287354d622b",
    "signature": "0x03be7b1e4d8440022f5d6380a717ada815bf6602aeeaa1e8e9b8e8835a909ed733e3d71e5dfcd4a69f30cbf2216d228aadd271cfd92d0574f711650883e564fc1b",
    "signer": "0xdcFFfa8EB0B3CCeBBb8F585ceF6b6dAdfAb46292",
    "userId": "468388066"
  }
}