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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9fd343306db8b8fee263c5667b9b26c9257301443f05c0954722ac239b2356e8' 
  AND token = 'Ik9WUQ7xS6zb+Q1S6Urhlc2F7pwD2pKYgzJzC9L6eOg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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