{
  "manageEntity": {
    "action": "Update",
    "entityId": "493803247",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbd29679a31262e0e77e2767c0688d35d58a5c2e41954baf11af9407ec1b387a6",
    "signature": "0xf88b7096e6b636c3f24f169abeade694fd15a0547d986256518ef904a17bd586748368254df22219787d632dbba76439210111d2f9cf33206d2eb0fddf2b49e31b",
    "signer": "0x961212f597dF8b6F3728265ab66057537906b572",
    "userId": "493803247"
  }
}