{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180188",
    "entityType": "User",
    "nonce": "0x57f04075a4b435deb8e93a7c5faba43f6c1d3dcb7b3380e947fb7b67809f9f84",
    "signature": "0x4c467295008e64c8d97a01f08349ca7678517a5c8bb2191cb74f0c9cd91cab5b7e3908c4dde7569791e09aa077450f265f965442a051a16ae005d7b26352861d1c",
    "signer": "0x3EFFF4df817177c0A8370597a286FB16Cd1DDd9E",
    "userId": "688850395"
  }
}