{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6aacad13f4fd52358205ae5d5a493665b2a8a1c37c211da8c9e9669251c5ce91",
    "signature": "0x42871a38effd285ef6955b4ea3427254fe7d9643b99e7e0ea01d97083e83281b09965981e8b54086138dbe448c438ffc9024d3752c81f479f75fc367d67c8fa11c",
    "signer": "0x527Efe181665393C2F9fbb85c6108F227c03DEB6",
    "userId": "907067042"
  }
}