{
  "manageEntity": {
    "action": "Update",
    "entityId": "167460105",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb3d099e62f9e5dd2c6a31d61127b4d346f56a1eab5cb04e028a13418869a72b1",
    "signature": "0xd53591cb6446fac83340191ddcb2b07c24036916cf74c3a975f0e875265a2ab83dded65d6b9fc206426b1be8faebe56c11760e984fec0b0d5e71e0c2b42593fa1c",
    "signer": "0xb66FC37b88D26E0e013aDed6897eD50553F83825",
    "userId": "167460105"
  }
}