Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d07e83980f68be56eb24d3f896904096f16e82d26c8f12770363579ca242b5a' 
  AND token = 'Gyhh+eGbkqE5G45klVvX/m1OIcktihk1KIkRsU+1o0w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}