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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '36d15867c4d819e01e8387260a62a4b5f8eb295805b820fc3025be4a8fe08c81' 
  AND token = 'J+5dNVsQZ+T+7fEq2oCt9FI5aOK85zMI3r+/OBpDYx4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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