{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16151",
    "entityType": "User",
    "nonce": "0xe0d2b3e15fc813b2f5a8a519e13b154130ac2be6da6738e27ced0e72cc05c156",
    "signature": "0x48e4ecfd4fe400a017f666d49f7cd1856dbd63c8734faff814a6d14f91a014264f66d3d8211b8dad95b9591aefd4fe04ded8aa1c7adbb61835fc9de496fd79f61c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}