{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0xecd5d79297f35074f3f834e10d0102cb8a4e0d1e1efc606b7d6b0de52753031d",
    "signature": "0xc41348dd68b549b74b1360e6a48eb9a07c92c43bccf093fd65bafd5756eccced50577ffaa01540e57954b489bbba2b01bcdb483c724b7f589699b43331be13a61c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}