Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4277bc630b015863ebc2c6b3c9d11a91573c8c2e318f7b16778246f8491086a4' 
  AND token = 'J5LQqpkGZlE88HH94vJl/Gbky6FONnu+1iIjSS9PBiM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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