{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180488",
    "entityType": "User",
    "nonce": "0x3fd98d1ad7c4930b84ab34a588326e5a26d029cb98a96e9a6835c118be1b44f0",
    "signature": "0xf2b254664230b31b88f95604063618c5d2cd425179dc1e9ae1dd7db4e009542249c9880e70dd6dc0c6c67ab74c7d2ee4e985afb01db13a25087e5ffaeb056c9f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}