Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c4584be176f12857004c928b067bb321ebd3af51cbefeb4c09bd367dc6197832' 
  AND token = 'O+u/GAblF6TraXa3CpEvsX7Ey2refrwbWoEezy+cFp4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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