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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '12228224c7c0cbb8b58e9ae1860f70f11551e526c003f36a7c1fc799659ec914' 
  AND token = 'XvbsD6Isy4zhZ95FnJInYHnB2UnQ0fEgfll6ALImEd0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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