{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x761427c7380b915fd9880577a91645bff4138b940df029b0733289fc94174747",
    "signature": "0x7b5b0097d69c2b882e1e65267594468f9812c026a99de6e84aa4955e734ce2f02be131bd9c2a5ff71f767ce1dfb79ac2a91455040a411cc83a9ef1edccf00b021c",
    "signer": "0x0C73Cb0314281db439083e5ae4b1443Ac537a76b",
    "userId": "346579799"
  }
}