{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xd6110dcc96ee60bd2c0f5affed38a46863ac283e13044ac152cc58f502ea38f4",
    "signature": "0xc9281b82d3e10ba9ff6ca09426e5eaa83ec82cb9b40afb4d94bc8a3dc95d822f6e04955207af4cf5c1d0808043938439fe3a63e92ef3cc226d815f30c6336ace1b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}