{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945571385",
    "entityType": "User",
    "nonce": "0xed5fe3c68f9819583e711109b853f362e0afa88c2b3b6f11c8890e62d5f45651",
    "signature": "0x18301b924ff3fcf6f8015e07e415cb45bedbcc4b0ce527a1b99f05e85234fb5a37c4f76f2924d86dc71c57acb80d7fe5034ecce05a0f1275271d25240113c13b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}