{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57937",
    "entityType": "User",
    "nonce": "0x770b8dbbfbc48f1edcaf0db457b2372e3c19cf8586cc8dcce478d73364f251ee",
    "signature": "0x7f1a43fd18fb3abc5a800e514df2afc9b0e3d896a5174f6032faaa7c218b9abe293a422fb3dd08f146e794e49a7a2554b11102e0d2ca707cc9069db46c4b1e831b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}