Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'a86d94222c0d71ea5788ea8a26245277cd71a9526bac1fb35c319b9ecfc669f7' 
  AND token = 'x50wYO2HUNbz0fcIS3ifKfgw5lpuAo5lYi8eVldUuYk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}