{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979647385",
    "entityType": "User",
    "nonce": "0x2d4d25a55e812769f5eba8cdc9e1033862304334bdf281a693b860b1e528f2cf",
    "signature": "0xddcf251caf9fc98a7490436bfee7dc55fcea1d04e6244b8f83d5111ff616a6a86a859e2619f4c912d3b1e091989030774c99186ad5e365fb02c4bb563b005a7e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}