{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332438",
    "entityType": "User",
    "nonce": "0xa7277554d7a2fa7f7a3d8de5f60bc3c64ca0b6956eff298b4cbdc0f36c29fa13",
    "signature": "0xade05a3876e29c28d1431702f750d9cab007155df6480cad144443e87d0dedb37212cb6f64f6c0fabd874a3e73621f958e4e9189a7536e3f78179dab18a780d11c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}