{
  "manageEntity": {
    "action": "Update",
    "entityId": "376644752",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a30b37f6c1d2f7d11144bac736828d55cfae899bea7ffff1cb64aaf5f7555d0",
    "signature": "0x9c0c62445cc40e2065d47dd8f98e0c7b293cb33e1b489373fc2c39fb94337c627e22a479db79ec9b2c6724d3e68d3495b4e1e06ee9f154d9218fe9fb1bfa89461c",
    "signer": "0x0fAb1DEd74AdA49263035d144D767a18487d5216",
    "userId": "376644752"
  }
}