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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '101806c1760110bd85b3d3686d345ad644961257ac2d6750ee3ae3b53c2015ee' 
  AND token = 'bPZtZZqG2WTDhG6hbs9fyvgZWf7t4X/Osip5MO5VHFs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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