{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa6a6ac07eba7d703f4c6d3cc80b7ceabd9ea292daf17d033f649c67eeed26a89",
    "signature": "0xc263641456a1d9df1068e0b6e5fa74f505394549a7b3405f700ad0dd2a8002d245a289ef6ba7ce6e9d8cd4ce16c6c8459ea6bac55eeaf9d08abbf7e651f77fc11b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}