Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cfedda6a0afcdf8a31ac7a82bdcffa361494f21172e8260a23f18058d94c5922' 
  AND token = 'i4sZnXONI8AlCOQnRi0GYhG9f838pi4yCDWNOCnLHeI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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