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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '60040aa965f1a60f5ec010592ec397ca3d893fa8a58625ef0ade7915f1697444' 
  AND token = 'Vp/m/TfYnWeFcxuknQOy0xUyzMHyiJk/nnTt8gS05t8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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