INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'ee3e51d3de5d01859b89ff73e66446d0d3a9afad97771347efd2f9e3c376ec9e', 
    'u0mlfMBXsn01MDJQpq6uUg45KjK2r9I3JrzJYhB4Fa0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00035

Result

int(1)