{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51abdc12462b06113c5ff89eab972b8a546c9af4de3bce3016956bf2c365f6f2",
    "signature": "0x9ee12ab0e188340f13f179a3cc3fa6c87cebd1eb72d455f5fa72c6993aa749947de61ea5cf006a61d9db89306b87ddd15c2db5f6cc027f399b9626f40e28f1501b",
    "signer": "0x0d3EDd3c6C0509D9842EE6788c30290B725a0a23",
    "userId": "132862101"
  }
}