{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xe578b6733cd4ec83100747c3c594271e7970e8ac98259e021c8cb943beccc007",
    "signature": "0x882e2c7c92d7c4f80740f9782d7f91ece65c017cd937151dedb83a9fce35cdca79a5cda2cf53080b156caa60eb0e08b967a408908089f67803bbc660cbd059071c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}