{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16677",
    "entityType": "User",
    "nonce": "0x729a4351d326c4da3ab1f58e72d24f18ec634282e8f31a07e4a0c9ae859402bf",
    "signature": "0x3bbdb84a4bc641e30d2b724a050e39c5e42ec50e88f9de7457f39b67f35195e4461a549b5a1912ecf4add3fca6b363600e57da2d22b0d6993a26b02e451fda991c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}