{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "321986",
    "entityType": "User",
    "nonce": "0xb356f84febe04ebb3bba22edde8d10e37df7fef3fe4cd28afaca5e14791beab5",
    "signature": "0x1ddcc83d524fb1f95c350c44b813c72111f8be5d7e4e0cc9fcb115c703942e0161021504a6e5551113ddff992aea98d608c8462b72b061660f8e83c4745da9ae1b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}