{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1471974",
    "entityType": "User",
    "nonce": "0x18a7a1afcd7cc02558556d41e8793535e729d7435a381e7b504f944a715027a0",
    "signature": "0x7f4df354c1d64eb44d1a412924c9ed957d527f7858c14f8ae51eeaee7bce63d225c8ab1c69a9654025e5d506429189b1e5681353ab735f26b2d47b7807fb7b0e1b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}