{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57021",
    "entityType": "User",
    "nonce": "0xb25ec196286f8a18f90ef7666ba9df54bdbd1561eed0f62e3577e7a5f020e8c1",
    "signature": "0xf7c5cd2202d27b8a9448334a7c87a012c4b3800b359b2b22e83dfd1a8c87c5841240a59320dff90f2f027a2356f85d901c2365986e019eb13f611aa579331c241b",
    "signer": "0xd41Af68ef04Ef65877a44995C9A9b85A4493eDBf",
    "userId": "732384438"
  }
}