{
  "manageEntity": {
    "action": "Update",
    "entityId": "469471331",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4bbaa0f95baca3b2a141a5dc215ff8a8bfbf0785afef30699017b77ef02c5175",
    "signature": "0x6db361bf5087dc832e0ac9bc063866571977c1326392d09c8ea3d57c8592f90f03225f2933c5219f126801ff24a456913453361ea3b6856655b61b33fca68d371b",
    "signer": "0x9aC298099aB8B4b75959D80fcD4a931c056925dc",
    "userId": "469471331"
  }
}