{
  "manageEntity": {
    "action": "Update",
    "entityId": "37114300",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0752602e87f7ee6f4bfec45948c3fa351759d94132ad2d5c1a35322ef3d0f196",
    "signature": "0xec063f3c9f09cc98c41709351d7bfb1484d8de0122e7cb07eec5e8d574f31290072dd64e31b1a7e3859d75a87c42bd265e24ebbdbd7506c7ce6a8d8bf9b969021c",
    "signer": "0xf7304A18569B456acF862f898DBb2B9cEDdf3edC",
    "userId": "37114300"
  }
}