{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89623",
    "entityType": "User",
    "nonce": "0xb935f03994a098fe0dbb12f3776968bbefcfc14eda048ed50d6c35e2ef7c9117",
    "signature": "0x41e0f8190e5f34d9a0eaaf7fe310e5b97f75fa71358266da03cc1c7868c9d65b46b8cb50bb4014321b14b1e407f3b2532a92d273207299d040bc03d3719f91061c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}