{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "859",
    "entityType": "User",
    "nonce": "0xe87127e993c2fab5aeb97c9eba083023fdba8a788bfdd6a80a3d7bec24688b23",
    "signature": "0xe978b9b8461c6f514d62804fff359f312bbd442ff0b57f56e7813de656f61fe032f41f4f10bed6552b691eaa4a7be34973687f9c660e894e7a151adfff9cd6071c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}