{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xc9196fdf8774b91c4c9a03c7d83d162d8012d72bff96cf87da5c16ac2ad2e2e5",
    "signature": "0xf2cb21210afb072e2c1d1c3a568c48d0c0997bbb24ce8bcb35ba53828ee93746096f241221515687b782d95b222773c81a8019c4cb9774da47f7c93e9d550aaf1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}