{
  "manageEntity": {
    "action": "Update",
    "entityId": "444965341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7fed3d8dac962bc1b1b97769a4ee020839ae65e0f713e18faeaac9d3c50beb7",
    "signature": "0xf105a72fe44f58ce12cd622b6e0d39a146dcd414c0fa4c2cc5272e2d654a6cf1669f11c57c3082a899842398e70c0897a3627ebb9018e84208b2b7d2b249365f1c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}