{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15745327dcfbe816bd7069ef344fb79a2bf172ca3682c6017a728c41ef0fec03",
    "signature": "0xf2929b0be85de48664dc8e4e98b4407296e9715c6d81b06946bebcc8e16389f636247d0104741fdf2c29f3cacd80c73e19e1a5f02500e5e7b48869a432b0aca61c",
    "signer": "0x1080460F21DCc82D7160d2C77DaAb22a92c4dD22",
    "userId": "162106877"
  }
}