{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30224829",
    "entityType": "User",
    "nonce": "0x1ae05a4b618da95d4afba71dc682f025ea5b571b6317c14c5d5a353042d71509",
    "signature": "0xc83ad454b495c5d79a870ae5e76d812a003287e3c172504dfabfd8494c95c8e46933d73c6202c96570cbcc1699c7e181dfa8b73bc79861ba74f4c526e025048f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}