Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd4878304f13a248bc929fec6521006644f215bd0dd32349b5d7c71f464a2424a' 
  AND token = 'l9V1hC5QODtzxC4Xnhcp7DWItqjQbG988wTI+gdAxls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}