{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333763354",
    "entityType": "User",
    "nonce": "0x0b85e25a3f086b8ee3ec42717eeb59cb874e92789c94bbe30c78122f20f8b940",
    "signature": "0x1b0f36b090f2c7f82969f373a104fa7c2c70bab38ab46b5891cb34d2d6b07b2a5df99e61f28d5e433fe680a088a2a02b803fbe2bc2dc1ed4734b9086d7c7509d1b",
    "signer": "0x1F9dC682fadBAc94c0Dd4ca2232a3f490704a737",
    "userId": "737872723"
  }
}