{
  "manageEntity": {
    "action": "Update",
    "entityId": "310855216",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x11b323e66f036e28130a0bb92664d79b23338fa3e69a1c8f6487a20781f259c9",
    "signature": "0x753940f701af4fa129008c1241fb670aefb80c3622fdf4f1f5307268966122f73947c98785f6727b2d137854ce44567ce68b1995eca313fd82c22edd5a8fad0a1c",
    "signer": "0x4D040D6DF64f27D5075003520f79418826dD6014",
    "userId": "310855216"
  }
}