{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x179102869b60dca71d0e9a03fa6b86c323009e106429714ff145b2d3e1663d68",
    "signature": "0x5ac4e1737ffb914a506bdafca5d4c7b49ecb4c6f2780418a6ee6b38db1a82c4009c448b4dcb673e62780d9b44c2551d2a4e0385e1ea7594eec8c9d16f78be8651c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}