{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x59ea8e5ab03d3128eaf903e0290b7890f03f923a4edde8bef57011d9a76e849d",
    "signature": "0xb5ae66814a5538b3c80c2c94e994448902afc448d9823993ed15476b9c90f2f17989e94c745bbcc1579e0012cefe7391e411b5fc752b50a2858d839dfb0e103b1b",
    "signer": "0x6135DFED4766632f3E2e097527cad142835825E1",
    "userId": "312072568"
  }
}