{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333855",
    "entityType": "User",
    "nonce": "0xe4d4e1ef272fdc637d5d129576017b74b156a6f37b95c565348f72a3e1533ff6",
    "signature": "0x1828d36b11f39d07a25d989b1958f79b81bf326efb12c706b66d325695887b4365ceca708eec5b8299e654e3187b1d69f25b096ec3dbd62eba917cf6eeee7f7d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}