{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30609",
    "entityType": "User",
    "nonce": "0x69ec8f2c061d76fc7b61c446bb02b83d60089514457a3441b241e6779dcbe390",
    "signature": "0x3693a6b080c15545dcc01c6dbb6a5ee3e2144772bc033191a691cb24d65283bd6bebfedcfb18eee59f77ef5447034814f93cd133277aff4bb13e159f49cc86421c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}