{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "572020046",
    "entityType": "User",
    "nonce": "0xaa4375764f43aed0331ecc147f167cc30853c44458c2198357d5a6ff68809a9f",
    "signature": "0x6b028922885c58e0adfb40dad21bc09d9eee568d201a3ddac83e1c3bfc83a8124ae446430da58049238ab1872d83d2f4dd0a4c7cdb23a98c9caa73e2498e28ee1c",
    "signer": "0xCDb8F390F2d5D6a1687a289dFDE48b06f3403872",
    "userId": "176094510"
  }
}