{
  "manageEntity": {
    "action": "Update",
    "entityId": "758222405",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66fbf9c0ca906d876f4da9f0654f09dfc90844bde9f911f22899b42529267bdf",
    "signature": "0xc17f521f559a1dc0e3bbb007c30b066bd7703bd261b19afbc80b387d3f4303853a11932851bc92818d522e7508409e9137b615a685be734d0f9538c1cfeada961b",
    "signer": "0x411178C64b26B7a9ffcc3D04ba12241Ca69b4484",
    "userId": "758222405"
  }
}