{
  "manageEntity": {
    "action": "Update",
    "entityId": "280220384",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x321fa97872fb674accd3471ea56631ec23eb22922f108f57d0cf0949546e5706",
    "signature": "0x04389a953a0463eb3b4532db79f928937118b495809812966571ba4bcae927e27b3dddc5109db50904a0073d3889458344eb4e83b07f2a9afea56ccc3f74a4f61c",
    "signer": "0x2a3494ddDB5D34Cb2778C63dC6e5eBeF02071FcA",
    "userId": "280220384"
  }
}