{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e60acf33f8850e20968b148a9e5208b9c8a4ac776dacc646eac5f7f5189f11b",
    "signature": "0x97a83cb76066bc9ec92ebf37b8dae426753cf90c921887d0e60821eb1ab9451b4e4cbce6e346fdcac00762bb2ac5f0c7b0e06a634f182c491f7ece953be1c1ba1b",
    "signer": "0x051bd0Ea2A7d8Ef601A04256B9A3Aa8245483F55",
    "userId": "217588917"
  }
}