{
  "manageEntity": {
    "action": "Update",
    "entityId": "439116984",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1703693e3b793509313667ffb2d41d85c84811a40cc6d7b3d057b0c2591f3a2c",
    "signature": "0x5e8600e58aecaa7d88506034bf98df36dcc9d7e4bf95070a669ebc4570d0edfb2a6348b28025743662d0d9a4dc885ea989c34a20466a693474ff4c144656410d1c",
    "signer": "0x713F2e5B0EB36E8f4406d30664f8b9fA676795d1",
    "userId": "439116984"
  }
}