{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5f31ebdb2fb46ea2f24b93f1ddc30c745fcd46d565cabc69202144abbde22e2",
    "signature": "0x79244ca9c8c2f6bf7d98a1d8c71f808e533fbe53449beccbbbff412573457b0326287788e4ae22b03fe3e5447e7e15e704542f88936ede5e5b555bb333934e271c",
    "signer": "0x6EEB6F4Fb8B2091514C245a25A811dD4F8594c3a",
    "userId": "467660561"
  }
}