{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "756082",
    "entityType": "User",
    "nonce": "0x8d68dda0995ad826c4f31c4bddc52bf3c61b6bbcc8be59e5ad2c4b626704b970",
    "signature": "0x51ff6f7ff8a7fc90c2a7a5a1f8dd8bfc5b1f1a5b7cd498d37a8a0d988a079abf3eb1a98f00f236f80cfab98b383c1e5934fd468a5928ad2f9c2da011d96a9dd31b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}