{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49012",
    "entityType": "User",
    "nonce": "0xe2f9ba6dd36ae24a6b18203aae5f32c6a4b52152c030d0a3dee4c147ba285e59",
    "signature": "0x137dbfc16d1d6162ae8e462decff01ab7d4d7cd773056383e9cd5ae6e1444fc256add4c41495d3ab1f322e43c4f0d054fe519d789ca89e084d8ee2089e5c0f0d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}