INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '5303bcaff995b8a7c4cb32db723b689771336429c1b0cca068db4906d8172939', 
    '+c4GmxugL3eWCuog5oaZMjaCgnfX3gMIEzUt0404rWc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)