{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x99a7d4e073c12f904d62dbefb61cdee02e27f5047b3699ae77cdd053e74e269f",
    "signature": "0x590d45a045d3e298893868acbb9c499fe0ea1388d2a23f1d445085cb1aaddb35789c6eeb391dbe0db1d963e820ec11cf1bbbbb9ea9cd7b89a2f20004c267d5c31c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}