{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809803",
    "entityType": "User",
    "nonce": "0x50d8d2a6472fc4472903cd6fd44b208552b6173a1f274a975d4adb3a276b75b1",
    "signature": "0xe42936ead18dfad3dbe280e68bf602aa3d0b15b24ad5820f1e6492958c27ecbf2da8a2705c255fa24cde31640f3e77540d2737b7377d11a6317bf2674810e0e41b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}