{
  "manageEntity": {
    "action": "Update",
    "entityId": "755330176",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x56639098fb1e130c259066fd529df1e222b74bb43e7c90d29f9b0a650651c4a6",
    "signature": "0x80bd54a605424a7891179b5ce77ab45e18ceabd22c42b88f93fbe7c3c95f515726fbc0092f278c205a5714899fe0429fff6f49261ef1d3818df55c747b1c86751b",
    "signer": "0xD98eADAa29791533E4074Ec7A4d2eE7Efa0731d1",
    "userId": "755330176"
  }
}