{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0xc5b68c4ff81785bdf433989badd0fc7c114f4fc526b1d828b5dd70fd286ba56c",
    "signature": "0x39647207a9622adf3b51e9acc5f802fc753bf571847aab65a2fcc13d77cd52310ee17ec9fcaad264e506020c9d952272faa0879f6f87f092c1a677b12fe46a801b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}