{
  "manageEntity": {
    "action": "Update",
    "entityId": "380461014",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1a87d5722505670c3b69c383f8d1ed7a4b426dbb590e6ee7f96566231b470b90",
    "signature": "0x709b2b82a07307657a5b8c4e4e43c4d678bd69d60b626cfb3dc4ee286474cc722be7833f736e2c727d9a175bb0d4e6b0f78bc51a78f8079da3665466f5c1cfb21c",
    "signer": "0x983e5042cebE0773dBB75B5432b62c5f12c4686b",
    "userId": "380461014"
  }
}