{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318560",
    "entityType": "User",
    "nonce": "0x8cf135d8fac1f96bbb22c5ac1da713d12848ecb3d563ffd6cdec5bbea63886bf",
    "signature": "0xb9a9df661f4721d34e9ecba554070674519a5ca43aec56c3a86111ead5a5a9f90258fa1b1ed1efe55d858c32359800207385bdfe47aaad670ec84da0a5be0d5d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}