{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x5cbb0261a502bd67ff2a6f236c330176ffb318c8b783a02fe68c60fe875834c1",
    "signature": "0x147655ec51286f6dbe68d4af2348f8e3af1222bdd9d627afc72cdc5d13aa2935782f9452ff74e23b5635b27cf5e5cd1f0f8414ce4bb3a034b776d5a6661985081b",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}