{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276123840",
    "entityType": "User",
    "nonce": "0x2344ae9831fde1faad4afa526e04decd3f93a2996bf355bf41b5ffbd512b4ed3",
    "signature": "0x3b6c50f60db48eabf773e46b66e6385b391250a59a0473daecdddc148c83c4492d797a82318436996fed6b8cfdbff351141f76715d986a17724a256a8d9fe8d61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}