{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73513",
    "entityType": "User",
    "nonce": "0x1beb3a43b33ffc8d48ceee7791961b399353118fe39b23220993b9a45b92fe58",
    "signature": "0x35cabb91de46d0748fe93391b4635ef812d26d045a19c439182fd8970d752dc668c72ff6c47a0dce9fe5fe9419cec5c88f8bfc8be1c857dc6573220400655fa61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}