{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708",
    "entityType": "User",
    "nonce": "0x57228fc54fc972d1dfc7a30ad9974447dbff2032708c65307193754aec8a5894",
    "signature": "0xeba24fa10e4949ac438d399518fa257c2ca977ff5a07c9c57ebb777810eafd697187a7f692edf44ea5f65d89dda806242d0a8cd2fc8f57d1e561ef19bedcfbb81c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}