{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330742129",
    "entityType": "User",
    "nonce": "0x56150fab96bb87d1250e3c29fd2d3087d222905e69c91f27c8c7afa614d9d8d5",
    "signature": "0xef4a7b23d2823bdc8133024acc1cda7bf14c4aac78f2d7d8a7de12ccedfbc4ff00528b1735853491a0b0eccf99edeaa60f5a315592aff15857fc7cd36a1db68f1b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}