{
  "manageEntity": {
    "action": "Update",
    "entityId": "802945079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralsm2ljhnkq3xg2q6pkqlwg4s56hkfmmaofhcot47njitfokjqc5q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":323513596},{\"type\":\"playlist\",\"playlist_id\":1298166931}]}}}",
    "nonce": "0xff6e33653d55547cca3b7f5b3ae8b58a35e96323be9ebac38fa371413c12ad61",
    "signature": "0x54874b480110f7aa20da8bdc9a2a36eef343612a8ec228a03351f1d94b4dc19b4f6508618256375ab2d53dd2506db86e3398531c21cd7531beab52101bd570da1c",
    "signer": "0xe3D5b106279f548FFddA4A8205F7149cd07e088d",
    "userId": "802945079"
  }
}