{
  "manageEntity": {
    "action": "Update",
    "entityId": "486631378",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe7c1ee06da2a408a3a4eba156af436f91c229895ac83501c6ca33453936182ce",
    "signature": "0x4244943847ec59743e73ab3ab1a66b663ead63dbb90d8fb249a73b2794df70e35912de27f1125484382c3623d74c70ea3af0b76237ada3d2c984992f07ce384e1b",
    "signer": "0xdFB9866e659412DE3d5Ec4011195e85BB269c1E4",
    "userId": "486631378"
  }
}