{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672274420",
    "entityType": "User",
    "nonce": "0x28714cdcde2fc34d96a072494d85f2f86d415a0a917b8fad2b7259ec474d162d",
    "signature": "0x958c82df67a7503f63ae0b134093b36476be2ed8589d7b4e10b2fc8c0c96feec06bd887bd39496606854d97f8f9b95266d03c99778732c9bfbabbca3c64e54f51c",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}