{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "178661",
    "entityType": "User",
    "nonce": "0x273661e8866381e3603990545f33ac61f7f867c139839aa9e94549bc8944b696",
    "signature": "0xd57f10c3946825a59dbbef01362f147bf9eb071e91ebb7cf0df6549b9c1536f90e6ecaee59049044b21be4ae131f1ed824698d120f701910bd512883ab65d4e91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}