{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "864565086",
    "entityType": "User",
    "nonce": "0xaf7833f9ff806dd7a7f071e3b730d04802e515994ba02f4623a4a4ab9eb35a40",
    "signature": "0xab460631e997e5e0c91c4320e52f27ca73f44f886eadee6c1a3ba99bb102f5a147d45b28749ea71944d8b9ef7d7870910ba8a059d57f941544f85a00ee2456da1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}