Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'f149968d0e472885f00dc8906d08d573f0f099f42a7e512546e15fa0373961d9' 
  AND token = 'Cv9Moi1v1KopBaQqjjioOTXFOnNBfROX3JTpFO3nNkY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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