Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a69809ebda56b272f9fc7d8bcae115c681d9a5cf12f675381063ec7ca532fad' 
  AND token = 'faX2fNwOlZpwVmoKMzsg0QnFhWa77obvFTHJWMk5Tm4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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