{
  "manageEntity": {
    "action": "Update",
    "entityId": "842043513",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraidn3g4waonxpjuyj5v7xcs6vhxyo2xs24lhggvq67cfbgmbvewbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2143224101},{\"type\":\"playlist\",\"playlist_id\":1746798270},{\"type\":\"playlist\",\"playlist_id\":1174864561}]}}}",
    "nonce": "0x58af09d184cc3b8110e1602aa506467be96e2bed87789dfa667d97d5d9b0e655",
    "signature": "0x9effbe914c46b66f0b58957f23f752f8e031ad85be976e09648c205060e741d575e86dd7ddd9eb0135d0d1b1b6b9cfb8ecd17bbed9cc8f789433d11f9a2d263d1c",
    "signer": "0xcCAe7e3D3B788aec9A4C39797101F323f7E87E55",
    "userId": "842043513"
  }
}