{
  "manageEntity": {
    "action": "Update",
    "entityId": "692340677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf908b5dafec227b8f137ae08139b1e16ccf7e1851f6f8b2e0f940fb047e6dcbc",
    "signature": "0x6127683181ef4b9e7a2992a6c3fd10ec5bbdbac17530bc73939cf5a9d731c7f05f27b27df7bfcc955911de5e41ca51ab7c1ea8f46db8e4f694a20fb6c6b9df131c",
    "signer": "0x4D72d63bB6108D138AfaB7171b6099BC6c3d5831",
    "userId": "692340677"
  }
}