{
  "manageEntity": {
    "action": "Update",
    "entityId": "638027537",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqnervsma4oaksgtevzlbdtgcu7cqvl55xjhnalnjkf57dfcsrg7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":490361547},{\"type\":\"playlist\",\"playlist_id\":1948893357},{\"type\":\"playlist\",\"playlist_id\":293185775}]}}}",
    "nonce": "0xe64fc6390a01158003f18c053445ee9401a89a3db1b9275d38aaeb7f5d9e5d99",
    "signature": "0xe08ce6e522e0d31a7ee02f651a87732259a99d1b706be2ae1d209910a7f079fa5baace3c2caf0de8fee9783a99ae41c62e5db9ea6b3d20348d9f23dd78f3d7251c",
    "signer": "0xe2b4d97BC8F12695D9607DA63B9776C3582d004E",
    "userId": "638027537"
  }
}