{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268900563",
    "entityType": "User",
    "nonce": "0xce7175ac36e580c9d622a196c3f251a399606ad59cc2dca7a661f15687649444",
    "signature": "0xced06829e37debfd712c13a3058e70c7f7b5f9b294cd51ac9864c5388135dd0c28295f4af0880c16e29be6df7c85ec7ac69f17fd637d16884504f66121a4d5461b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}