{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xc2f9766dea3f3e56c43c2ac9811c4a3ce9284c5d313bccd4139c2886b80e1039",
    "signature": "0x8db81fa434caddb986b47192747d2fc4819bc463eca29add74428bdabb94619d09ad8a7d8aa8a733701ba19fa453d313a27833ae49ac913a4799262590f7d7e71b",
    "signer": "0x10805E046e879D8e4503D67e495Fd1d280142e5D",
    "userId": "355715"
  }
}