Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '14d82321f8de9890227a5660b0a9ecd7f3193c979cad274a6325e66938519bb7' 
  AND token = 'FMhmmIk1yNe0vaiFbvX1qLfutOgzE8L/7ahvjzCkRrY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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