Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'fda0b0d5acb634d679b51c769059b245bd51435ecdc1b873d2ea8e0fde01d5cb' 
  AND token = '80JjNXT5g0hMUwPm7k5yAIp8sprA1VKjGHOMG9YOmgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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