{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2fdc5ded95b84ab6bc0d4406d9b22c9d4c8755113bb7d516035c24bb56666b39",
    "signature": "0xe27bda0edf6ed84247cb5e93d063cf1ac2577c6e2a086011c750ce444325734002b276692ffdcfa30cf4b0098c3671125bccaa39d27b8fb5fe66ca2255507b6d1b",
    "signer": "0x2A04Bbd7188b24482Fa0e0CaFDf6Cf5F5c64e4E5",
    "userId": "33865540"
  }
}