{
  "manageEntity": {
    "action": "Update",
    "entityId": "837557269",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd6500ba1afd63cd37415b20af497d7401106b36c847aec18283109a8da0f3ce5",
    "signature": "0x174e63ae17741568a4ab666370b7b3afefdff871125cb44be2561590c73552d34035eb4b39d3907d4d28df6b492f959608ca1daf7297ac2202fb34abd304c6731c",
    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
    "userId": "837557269"
  }
}