{
  "manageEntity": {
    "action": "Update",
    "entityId": "442717588",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc858b7971ab9eb947363ac233119dbb8e6d8fb7135d651464c537ef094b2b080",
    "signature": "0x00eb3a894764ce056dfb732dc022492154f8380478771a9fe2d588d0175b0c2214dd2bc388f2c54b3833746b1e31dfca43688d4bb5febf4e0f65e0731b04c8d41c",
    "signer": "0xd60220f53c002fdC0a2eFD6336deE7ae12ACF639",
    "userId": "442717588"
  }
}