{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1228",
    "entityType": "User",
    "nonce": "0xf3b9bc6cfa4b0db985cca0b5392dd6a781ef359deb81c651bb4a36dfae3fb0a4",
    "signature": "0x615f2540881eb28b8f8f7c637dd9014e6cc1d3236692573462fd8a49b325a49350f871a5e89cd3d57b023367584ee2b3e32b981c6cc08da7b5b871afad241a3d1b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}