{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892867777",
    "entityType": "User",
    "nonce": "0x8f68bb0f52d030a28208b3f42ad36963293ab76b7d4ea72de71673fafea8c9e7",
    "signature": "0x638d390cab4f2ecc6deb78246099c873fbe815dde1b6ebfc26215810efbb05ac1b1f7c24b801a4c3b9c375378cd5a580b9c080634fe4ed71cf290e0158a75a661b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}