{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac1ed3d44c36d9bdb49a2d4f3e84d1baaced147688b09ff107cbf70c31b98eeb",
    "signature": "0xef8298843ace4d4b1c9bc42d6aad4a860259dfcab7a6b3390cd654f5d427716f786fe6feed1995953128c1c938e949b00bb758a905cb4e39c3666940146fcfe11c",
    "signer": "0x24151476E72151E6E31cdF104b86082C4351CFFE",
    "userId": "563845766"
  }
}