{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136850",
    "entityType": "User",
    "nonce": "0x4de09dad91446ff585878edd23302c37d59a479209bbd114afc8539583b216ad",
    "signature": "0xc2bd67f506e64b9e2479ea55e27b3e0d428c5b7086f33daaf18638edc508e3f269e34cfdc71e37affa0ef04fa1bc10369a054742f4154242f78899fa099425df1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}