{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704994",
    "entityType": "User",
    "nonce": "0x3769b9f0394608a632b54ce6e3b711df1fc488908356053b8ee60b0f08f853a2",
    "signature": "0x876c56e5342792da01ce732c46d42490a9147c6ec684f27be902b131ee50a3c76988c07dd1955ae2b00fa67608d34f765f8f6ff712f020dc2f0410aa99304fcd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}