{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb3853d08428fdba85932a3d5ad12226286257ce328fd83a6732550528f6013c8",
    "signature": "0x260dcd580485c17dedcd4d0227bfd115da5eb8448f2d147e4958a8183d11161f4abfbccfc78bef148facf93d81a5d2cfdd244fe0ab512f12a8a6cde33645da701b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}