{
  "manageEntity": {
    "action": "Update",
    "entityId": "368540364",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierad3t2cwnfizkjt3vb3rop4ijdnu5q4dspz6irevum4yoivznqh45a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":23746812},{\"type\":\"playlist\",\"playlist_id\":425418181},{\"type\":\"playlist\",\"playlist_id\":1116656443},{\"type\":\"playlist\",\"playlist_id\":1565933589}]}}}",
    "nonce": "0xa76d358924afa80296f641b379d59c535e9d5380873b4be7b75a2c6ffac2c993",
    "signature": "0x5814f017564f02b589623bac4c02c0f345918424a4d0b9d137eb90ebdad2d1d3149a52e06c8e2d5f134e430fe6c7f6f15345b07ff73fe8a7c9fd510d0d82c5a51c",
    "signer": "0xaA6C386d1cAB51f0Cf347DB689752b0BEB084636",
    "userId": "368540364"
  }
}