{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb896267d0edbc5aba31429cd155e4cf548dc441b49c92d605362a7b1c561f630",
    "signature": "0x6824c64bd03bbb094f325f480f26b96f530844493d7f6cf7502d02e8d4bee0611d1de778f77a1d15aa40d43a829321dbde4ab08ae768b5a6fea1d84a8d1fe1a11c",
    "signer": "0x783cb29c1C701B6A4743B6b400fa12F6875E7cd6",
    "userId": "283193297"
  }
}