{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x516a8114f1bae4cfead450cabd6988ee9a7fcfcc54159a2dfb5cc637993e083a",
    "signature": "0x3dbbe7563f4431360b71fe58dd75c64c69be50695867253896ab9f2ed6fc0b2439d58d97df9a4fe21a719c788de580f160ac360c1428ffee56d7207142b71cd71c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}