{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161353174",
    "entityType": "User",
    "nonce": "0x15a40d4650159f627cd14c7abbbea4d5cdb0f43e8ee0014b1fa4825859f996eb",
    "signature": "0xff7dd806851c2090c60b02acd8b41a60e59a90fd8f6c9b936dc450287e03f9df1b0448c5bec380d12b1663fc6a16379b5f57e7fc59a030a6b116d3abf99e1ec51c",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}