{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6bac3b38b7a08707306fa61dd624999ac29ff4fcf69d7d7bebcaa241eb0be1f8",
    "signature": "0x468361e430a3616fec6a6cbf4487f8103e80b3c1fe88f797b71473a1ea599949270a7219a8e9177a67a2985be1e7e7fc9a8c2b3d91c3d467123aacd416d94cb91c",
    "signer": "0x909f7f459797F8609378A9265C416f6402933800",
    "userId": "178992998"
  }
}