{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11421",
    "entityType": "User",
    "nonce": "0x6640f02cbed1e11eb393dd2a41bb176d2f9349db605d087e9ba071b3d0fb0ecb",
    "signature": "0x45bf66d340065570046718f975b1466ce1ddfcaa5fce4bc3cc8f77e32926c0ae59e320bfbe3234f6aa89167749938789b4d28f83fd07e5ceed7660a7aa0e6ed81c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}