SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cd33c59b94bf84a784b7eb547bf2fb5a8f119855375e5653bd0479a14d5a4a07' 
  AND token = '02n5dqJewBd3Y1yhTJJgwRrQSrl2sP6jx6jdkY8M+Z0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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