{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3778",
    "entityType": "User",
    "nonce": "0xbbb497cf8790e88f3cb85634eaf8118b0c5ae086a651241183a2c32da4a9b33b",
    "signature": "0x0a9bb3dce0fb139dde0c724967bfd74034eb15e3f61558aafe017b64aebc13083262bd28fe8da0a43b06ea10b368c235304eb297eee1c7dd9e4f739569b7dfe71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}