{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "610392874",
    "entityType": "User",
    "nonce": "0xfecac451c185982733fdc6916c978bfbd73b3c1a76f89726726ae8179bed36b9",
    "signature": "0x18c23424d31657db50362c00437c68f4cc98283a2b243c9f2a759e97b96f91297129897ce8ceb28983d45b2f71e8fb291db816e1a7fa666a756dfbd8e42ccc241c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}