{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171306",
    "entityType": "User",
    "nonce": "0x6d613ddbb0054c819a5998d463389b2cd575543669c8d35a014566ad471ca68f",
    "signature": "0x21228d44937d48cef9f6891129f5d04a79e9ccd90249a39d4699f2abe99f591f34beb3c7c2e6454dc5572a9ab636177848900050a3f9058d44cf54d0796204251b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}