{
  "manageEntity": {
    "action": "Update",
    "entityId": "669812913",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f26f2061648e7fc70f39fab47c9e46b78079d093d4433eda82ad7895c935b6d",
    "signature": "0x8e9acf7f42bce9d931cb7606516aa5e23bb226fda2a93bad50673aadbcf22bdf7bc225e9253bf375e67464c7c40aefd658d26dc4c44569ed5269bc7e27b91e601c",
    "signer": "0xC4f7093db762DA4fA9F57814A12364C96C1E97fF",
    "userId": "669812913"
  }
}