{
  "manageEntity": {
    "action": "Update",
    "entityId": "157121134",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x923fd374b823d1353265bb84c7ee8a75a160ce090f0849b2545edbf1f8dfcf7a",
    "signature": "0xddfff1c0a226b4919ffb8d78d19c10769ddd605824a9a7dc6dfd405e6a994b956c22510f5ec324e3fb8d60edd50862dc0e2ced3c1e320038a6dc97382a9f6f801c",
    "signer": "0x9A7429eE2415DFdB8657982e6B0d577077A9e349",
    "userId": "157121134"
  }
}