{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc57eaa0da8b18c40f32fe864b7926ff2a9bc1db5fe19fce96770c70b93aebd45",
    "signature": "0x92ae82141e1df87c96da463beb844519db433bab0a0ffe83337c13b59e02a91955a76f0c110221dec80edd41801c3b79f444bf9ca4d93606780cf9ba92e33adf1c",
    "signer": "0x3D9f30130F21Da4B7aEFc8Ef62dB2784F4d3e594",
    "userId": "910193359"
  }
}