Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7406dd35d55b18513c5b9bd4a44cec14e145e0d4c6c9b1bd00472a9bfa61f9e2' 
  AND token = 'W2OfrqONcqZRQecwcvdLDYPA32MKtKneCQONOuefuXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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