Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e7f519f968916fd51cc24a79d7adc0af51a9c1dce269678c9b4cc84ae29faa8d' 
  AND token = 'TdbNSWoFsjp65Z376WSEb3/veVAa4NHhyr6HSILiHsg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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