{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7de8d616a6e2036500db28a2fe6f0ecb5f00d6ac92c861935f5c0c11e5b09fd2",
    "signature": "0xcb8e4da91fc5dad1816582b8b1c7590fc131a6a70d972e7e2f19970743409c7347b007700e9a15807d568549a35e67163e9415719e894cd37a195d25df99d09e1c",
    "signer": "0x0dBc2173FE644A59a622Dd86aaf9A640526E32cc",
    "userId": "741415842"
  }
}