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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0f1362e055485650f1e247c6c6067b8ec10d7cf38b7e09ed55d5e017cf34aa6d' 
  AND token = 'GQs02ygzYgQ9kgw2RDlHJOXARQvzNC6S8cbNxdPdPzI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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