{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0x5a86410bde2e35b369861d267ce0148273ece42f0f2f880e8f8c0c850038cacb",
    "signature": "0x5c954be9a47ec48fec81864cd2cce9e8d3578b2ea3529dc60bcb68253ddec6972dc9a6031cbefa5534bbd295eee65e983aa63f91ae6d2c1567c85ec3385ebddc1c",
    "signer": "0xce8922BCeB6356Bcf772BCb592290B731c4Dbf32",
    "userId": "322981683"
  }
}