{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "500162669",
    "entityType": "User",
    "nonce": "0x88ff35b06027f321a1c5f53c88d8bb01f1a99853a2cbc67eeb9207ebe3815918",
    "signature": "0xfacb171a4d4d3af8037d84e8bf6c0677b77791d72b1613c9cb023e4e5d984018506dd56ece98439e1f572c70a743121003840939284a16f7025c38ee0f08abc31b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}