{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0xd01223d622a3f3e8623b6a1a3e84b0ac59a584cafdea161be2c4b564a93e4134",
    "signature": "0xd698e0af96c94b0131a076bdba1ef5f54e064a9deb4c38b563cf671470386cab7dd0796b8c6d351265fd7e962f6538a61c9b1fe12ee2cd6a0f033f5f190fffa51b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}