{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "733460774",
    "entityType": "User",
    "nonce": "0xf36ef75875044dcd58f758c5bd81f776eeba44840e7ddc2dbbc9c8f75be93f35",
    "signature": "0x5a55572a0676087c10d07bb0270c98bd086f84ec52e504658447a9f942828a9b4301654822a97fda1235b590ad8efa5f5a2cd60d323e9314960cacb0727bf6e21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}