{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0xc43fcc855cfb8bb39d2df7b9fed14092e098a2036168b208443eca447ad2762a",
    "signature": "0xc9a31afe326d10581f0c96fb6cc306e3979740bd19a7bf31027bfb5406cebb6d2ed56dcdc7d03d8e530195b64801b34d068d6d35ef50150785e6de59bbdec7e71b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}