{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358471",
    "entityType": "User",
    "nonce": "0xcb244de5319a544257c6dec8afe2049f347fcd2c517db5d789807572ea7a4725",
    "signature": "0x5a7f6f5f0dcdead6250ba051ccb70ee26d28f4cc550691d4420369e22a4c14ab4b2aca2b5cc551a5ab132c78824d13c6cc847de0cdea3004bf4df8e4fd90c9a81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}