{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582447217",
    "entityType": "User",
    "nonce": "0xfcd3d85f9feb62d892df88c4ea7ed82e29e103926f3e3becc24eecdee05add71",
    "signature": "0xe22f60134ea13c5f652d5365c614ec010ba5076d52a7fb56f63da9f6c4aae73f791cf9a461a0baa1c0256de20db6ad10df108cc1f5350be70111cc9a8070a7b01b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}