{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128728",
    "entityType": "User",
    "nonce": "0x8c943d7fc273c055980ff6c3ca9afd98d2b704f385e3277fc96591c204f9c12e",
    "signature": "0x3d7720608d262699c07de8488f03be784098cb4ba81516ab08d5b6837f7c5062315b22674fbe6c9ccbe45e31f744fec2c7449553096bae675b5f2a4e8812818f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}