{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1334982",
    "entityType": "User",
    "nonce": "0x3d2b9d93563aa2e40979acd41072cf340e996069a74cbbe363fe668792517ddc",
    "signature": "0x82e9412bfed9a1ae6e7f75f5eb0ee94f4a3b6458e9c446478336a49335d2fb433ace358e044945e61c116d2d723c167f0d93934dab0b5021f32363b4ea938c3f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}