{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131345",
    "entityType": "User",
    "nonce": "0x821329f87a0de1f2549e1c56d7181451d29b0967733a356c00bd30bf727f5b97",
    "signature": "0x1f8998371de09f2a9ea017a7250cd2534359f77dece797f381a198ad3abfffe21aaeb270e3668ba6471ea95db7e76e52b9ff4e237749fb2fce60f55a807de00b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}