{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107423806",
    "entityType": "User",
    "nonce": "0x574cbecf844cb0e8683a40f2fc0470eef99d97d688490a6a336c3980844f3684",
    "signature": "0xe5f9aec2e5e140a9aa2a41a084fe8a6f6ffc2df730a232a3ac09da7d16a4c93b49193fc7d8bd700ebbb06f2e93bc7c93933feafdf97adac38600b9e013ddfdb11b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}