{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1fe3c735557f2b48ff5660c59972efe10233883a46e2417f6b9f0e78b01df1e",
    "signature": "0x238eafe3978923469f11fda690f9772d07946419388ec34673220103fecf9e311045ef7282b4d640ac1c16a1bcf86422d9093d144b5b3dc2467fc6351e3f1f611c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}