{
  "manageEntity": {
    "action": "Update",
    "entityId": "572980514",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12bd9064fe8b996b688af51b22af9feafb8512fe83616ec519da0b2083a42f79",
    "signature": "0xa9ffcabeca96360d79969de2c6689ce577bec64203fb9d2fbfb56e2aba108b2e5dd2134494740b752cea7e9a7479ade915dc2c1f8a06d4def605de995aadb5101b",
    "signer": "0x260F157Fa81041c23E5ffC912b47e62309eFe44f",
    "userId": "572980514"
  }
}