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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32173aff30ddce017ba5d490cd5560aea9e96d4238b88cbdfdb2da463b3d6d96' 
  AND token = '58gP3x0fAXMAk0bW4k/zCczaRZ2ulLmPs3Ztn80OV2Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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