{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51d8ed205760bc7effd3f10e44ada0dd870dd60f68aa0b836e79d68f38ccbf3c",
    "signature": "0x5c690189dcb81773f18a0e65b9f540b5ab4fcf87fceed222c132875d5dd21590718bb8de1d17db6706a156951e78321c88c3754083c1dd08040e4bebf63452401c",
    "signer": "0x7a70a699f16Bc502842c3eD59c29526323380747",
    "userId": "971347459"
  }
}