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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2cc13f5ea1268b2c2833cfd92c66c113f8e31e5cfd7330e86c3e8954fe7a31a9' 
  AND token = 'tWbr7c3EBlx/dkB9G5VsXBpW2jVkVKnKw/wYBRKeoM0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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