Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b9c9e9e6ac7642905285b1e6e2c1e1072eef077c38e8aeb5812d6d4fb261e59' 
  AND token = 'WWoCWMz23yaCfrtRJaCDCa8IzpMinJZ9LsNWaCpgQTo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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