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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '11123bd257588644826c87e00d4a147201361e46f85a561235f82da3cc7585fd' 
  AND token = 'Tx6hq9CSJNkYJ2hwaa5x4TCP7tfHuUlV5f5l1dZOpDg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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