{
  "manageEntity": {
    "action": "Update",
    "entityId": "252714865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9afd6a04b898309f4a5f0159d9c7dd70bf08db40b3d69ebe43d9410216e96e2d",
    "signature": "0x3ce467a77b30eadc8a9d5a66a26e5974011bb41b7abe6639716f362632a3dbc375632406d81990955e7e8c1e93fdc8317d2414faccefd859ce2b0ce3d2ffe91a1c",
    "signer": "0x94E5199717b062471aA4261BF1F434c0D6736D26",
    "userId": "252714865"
  }
}