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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1320b5a2ac99d3ba06551de079b2424ecf3faf9aa14778cfc5418ea0a4d4f602' 
  AND token = 'RPtv8idDmedKv7K9kHPGzyTWabBMgDnDjSCFBFr8b98=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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