{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67671",
    "entityType": "User",
    "nonce": "0x5b8a09e529262bb616e482cb536f922a48993d0225721f450751d721f7740e46",
    "signature": "0xcb2d35ca23467b43541ce210eb622eb18cc7bdee8be8a1eb1d5aae0e126d7dc275638bd13251ce5dbd2c63c9910fd7254337d2bbab934edbe1400c0e4ca220af1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}