{
  "manageEntity": {
    "action": "Update",
    "entityId": "438527948",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1410d07534ad63d1df0cdec442d953ae9189dcd64b1229bca064b600154ecad8",
    "signature": "0x26466530a017ddf6ed88ff765cacef388e7cd9e3d1fbbd2cfc2d8e87a50cad8222009fbd531e6f447a7f1114da4583e9fcfd3af107b5223bf1aea37e5babc8581b",
    "signer": "0xbD5104152D33Ac96296708739F067AaC7fC36588",
    "userId": "438527948"
  }
}