{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51d7cf75a5158d18ad62208539bf2657ffc325a5b64ea32750a4b853be553d51",
    "signature": "0xbeccc4abd91fda16307c4bb4d5ba48bc203cc9aa834c5301e8ea819f70e916cb479bb07ecb96ab9060a59e1a8a262b2b084543d8525a4cadf4d3467ab2e4f0621b",
    "signer": "0x2725361827a64888ba9a684719171faF8eBdd2b7",
    "userId": "936031400"
  }
}