{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63300",
    "entityType": "User",
    "nonce": "0xe727c87299229ab02ac225c73a17970e5e6de1bc3373354f9ad85baafcacc0f1",
    "signature": "0x5c0992d75eb5870ff2d7c70207ce376f9c6930dd9c02c0495e3391836877063d53c43aa2c35e6e65f30b82ce89c8594a4dfd5b5cac26948ff368ab318de88edb1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}