Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1cc84ea95c2ce2a88559e894de5b0d17ff4eb95fcb1462ac12bc04fcab3610b1' 
  AND token = 'HqLJT3F0omlLa1fkPzUW8C6VNBCsC2ZoGEJknFlVCv4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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