Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '85d65e89fe8e5a7867ecc6e75fc152be634fb696befe51db9b04606f49f8553a' 
  AND token = 'v7KbONzPPLAjKFMCPLX3PwuPMObQLAmR8lwf4ND4nVs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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