Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e14892479596198e6d1f6ff950e762503c6e1cbe105d6f40e61a47c2cf24771f' 
  AND token = 'Ml2BecQKIAI2mc3Snjyy4gABb31sIbegM3JH/do9haw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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