Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94ce5eab54139426a90d44de4ae2b1127510c814592d3d81b7900f74b4ceb3ad' 
  AND token = '5BZ6I5VDNYWNUVZC6cqez+u05PU8SF7IcK1u87HeVrs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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