{
  "manageEntity": {
    "action": "Update",
    "entityId": "893169404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf777444ca084d71932361c8ea91cfa6435785f9e95c810b0c2e37784c3ce861e",
    "signature": "0x9ba3d517351a4fc53e9fc90aa84a4ce7238f44352d84c7b22f3153abe2842a6b19af7d6a2f91ee569505b76fba3290984bb8e952fcd3de5aa4f917585c6f4fcc1c",
    "signer": "0xF02E13989E78713ba4D3bFC8e6823CAD550641f4",
    "userId": "893169404"
  }
}