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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2d9516e16e7c6f936e847b4245be8bf37a1c3b5c8f6b3ebde757161ab410487e' 
  AND token = 'w0J5l7EEEZacOadTaT9UCjDe0g5zDBH1RSV07L62ZNE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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