{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484111371",
    "entityType": "User",
    "nonce": "0x91867b59ba14a7430393e5c40c08529db23774751dfaaf74f691b2e2ad235050",
    "signature": "0x73512a05af98afa5a47f9c91fc457574cecf35954cc43111b5a28b5202a90f347c348449794a051c97063401f72d1cde03b048cdef18384b156dd81cf3795b801c",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}