{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232498075",
    "entityType": "User",
    "nonce": "0xc45ef9952ba63cbee44ddeab8dfc235e539d1698d1bb41904a53ca1907b74fdd",
    "signature": "0xbc8df221306c0cf284708ebb4c0f89169b00ea3566337f8f7a950a2bd6e2d3ca1368b58f458266b49b735e99793419f2abe5fe92985364496a7f36a0987819971b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}