{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x20e8aa087288bf1ca9548d3cf1e7ca2e755efc866386445ae30ff89de66da642",
    "signature": "0x10e5e76587d6132f0179b98a57372e99333ef4272fe086e735a1608169e25ad33146d327362e88c2afea61f4c1721cd76de0ade61c81332fdbb7e511b7e146cc1c",
    "signer": "0x220e20a4d7dE27e26a3ddECa10269BEc7c3094bD",
    "userId": "567899841"
  }
}