{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200316",
    "entityType": "User",
    "nonce": "0x68ff3399b760d01ce757b4d33eb5a98dc8002e83f091c93c3fdca65652ee1f1d",
    "signature": "0x42b5f846eda9c195231508202d6f1c578eaf3c34b2ca9aae57243814d39213937f68f0827dc94c68cd3d1b9c1266d68730888e5238676637a9282a7f47f2d9531c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}