{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xbaabff38b8756008dc96982ea304c70aa13254a7158cdc4f9a1373453731a024",
    "signature": "0x8065ae1a5cf3b8433d64bd5f69e1ab0ef7bb5ac712ff99d2c1578f8d43d3a0204abb06ce4cd618e740e3ea66baee64b0e1e04e3d5453e6dc33b1f6794742bb5a1c",
    "signer": "0x2b543a53037Df22B1c0ee10269ad909db144A1F6",
    "userId": "995163974"
  }
}