{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428831",
    "entityType": "User",
    "nonce": "0x076c37667a5aa5a60397917f2953633ec30097a8b77ce378d2a8e39ffa331761",
    "signature": "0xcf01d406f25830251d122a26eea1ec9cd04ee1b87b8433cb01e4d4eb307855d9298357137b0cd4050f3ef40dff59c92dc6a6864133fa4db9370fc593bc77135a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}