{
  "manageEntity": {
    "action": "Update",
    "entityId": "335616726",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc610bfcbfc48805b9e4d08326c9524d9de217c99f3555c86022f79c540454267",
    "signature": "0x749ae631cda9857b7baf644590f083b12bcdd1326563a8735ab0a23d59380f765f5d7f8fcc4b6fdbe0ca9d537d58a5dd63e102226ff7388a0236dd918c1885261c",
    "signer": "0x89034330Fac57Ba4216Ba75208827F30E8dB95Fd",
    "userId": "335616726"
  }
}