{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0xb5fb5e56e78e98d5ebea590054530b86def9b61d3ea8f7dddc238d8d42bd9a13",
    "signature": "0xcba2e0d115cd94519c59372c77a47a6b8a42c09467daec7b356ffb9e32d6bd12155949f981f1b4a8e18a77392e8410f08adcb1e1860e769722a6f1f8643d60081b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}