{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb193161fe0eb732eb810b0806fc1ca28b539afcaa2ef5b3249439957e98720fa",
    "signature": "0xa068f3beeee84979c160b34609a349b4d9ddf293dc2f088f722b4451d1b1fd9f4cff209ea64b59895769150eb2f20813712fcb8327390656758d7625a78e44a51c",
    "signer": "0x1Fea0fA17c32fD36403e7b0aACB3845AE7a167CA",
    "userId": "450050052"
  }
}