{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1462978",
    "entityType": "User",
    "nonce": "0x5adc085cbdd4f332f2126b93a1d77321d8832f8501864af9208424c2b4eb1482",
    "signature": "0xc220ec255a48309e88bc11452d41a144aef5019d0aea6de481ab4bbe0956155c485c8e43b27f86517f3fcfc95566c60ce7d8d2fa0cd2fc2ca728e02d342dc4a91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}