{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "968816239",
    "entityType": "User",
    "nonce": "0xf9446fad4988473f011d8d173f998298f14ec844e5a3a67a18ed2a8df0dbf096",
    "signature": "0xc03dd22e5da4fa63a4fd07d5430df2f92df61d37fb267439bd97b8f6459a33f050d0c63b5ccc4125d2ed7460201ab7e3931c4557f75b30b7db034359da427d421b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}