{
  "manageEntity": {
    "action": "Update",
    "entityId": "526180075",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9e12970c31e61b71a3f1fc4349b3f687c2e5933706e693058a28a5b86063850b",
    "signature": "0x55f40d31538f4a4c68a930eced7a6ab972557f31669477a4cd0064b228c8ac77770cf6de8f7db059af7abe61448d9c5e17db9dc22c305d8f7587389855b97e341c",
    "signer": "0xdfe57c03CEbfAc8a0e56Fb424f5c286d229C98Fd",
    "userId": "526180075"
  }
}