{
  "manageEntity": {
    "action": "Update",
    "entityId": "210267161",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd8b2e39d827e9d02d7ddcec75132f5d09252045b4625ae646d8f1059f70c70b8",
    "signature": "0xde991d0d31cc76c206d294007dfdf2d59336ad4bda1d1232b1fdc38719bb6c7a01ccdb61ae90125c2c59ac43b8e7db359d9147ce7b3304ddfdc82e9ee33bca8b1c",
    "signer": "0xB6Bf7407faF4C91Fb4B848F3e856D349E409814e",
    "userId": "210267161"
  }
}