{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x86e3fb7de6cb0e2e4bc2c5ef6a5bd3d8466c0734cc85bec7ab29d3e5bb7b2b4b",
    "signature": "0x44555548c9620ef97cacf1cb80365b1a95e1ca136d09d4910288b282cca6aa931a52d84bc5c2db5c9795edfbb654b1b039fcb63edbffc9af7c5a4f80342da7441c",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}