{
  "manageEntity": {
    "action": "Update",
    "entityId": "780483387",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcba405b7261b7013db3abdfc660a89d82150a83b519ef0da9a7dbc10f01507be",
    "signature": "0x373644fd629abeb2430a410380052d6a13c4d5bc3d51a7d95aad90aa2cd3fc8368dcf133481b73ba72642bc26a068ad613aa73f29517af75c60a1233eb323dac1b",
    "signer": "0x2C81B4feC34484F38A9D770494d7D51184A5b1bB",
    "userId": "780483387"
  }
}