Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a74ac867efb517d67cfa6e49bb5a038871411337cb14916c03b496d4efdd841c' 
  AND token = 'j+ndRe9SYmblNVwVIOmkgRhQR+ldU5RoxXbiLzwM+u8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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