{
  "manageEntity": {
    "action": "Update",
    "entityId": "944117628",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0f73232487e2d66e8b864493c2644063ab0807806e638c1fa6cd1900828f4d15",
    "signature": "0x445264a003d98250930fe9202ba521ff759da28c9c95b7ef77d2b4ce631f34cf7d5717818213acf9d2ce8d21717a9f0291b50c344094f493002fa5a8b9055ff71c",
    "signer": "0xBe9B6f5cb472cCcDCEFf1f823a3Ec32D93CcF9C1",
    "userId": "944117628"
  }
}