{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0xd660f3e1b384edada0ae323dfea4b09c4fdfefe3f9f8c7c92e8f718f7e590c65",
    "signature": "0x33933a5c7b6b3130e5b08288c922899398fa0345ac7dc9e8c91653526f71871e62cdd2f69ca444fce9751d7d4811c7c7e665fb696a30cf29a9bdb3c981291e081b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}