INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '1973aa41fefa3cdec025255ba18b87985b0a8e4b4e2949171d205db4323d4d24', 
    '6E2Z6iVRT7GPqVyq7tOA4iRWQHJ/amHDe4Y66rPTbkQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)