Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e25ec8f56c536889d05365da3062dc6c858b48d689ddc27daaed7f288c359f61' 
  AND token = '7yjLjZWhNysrYWteczgKIeo/VHlaFQYo2sDZTyFHndE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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