{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xc4e916d4181ee008315819c2ab1dc3fa922fec251df454c7a1d47cc931d5773e",
    "signature": "0xacf31f74acfe092b786893ce9d8e285e178c29c13a79894ee8de6d32561e71987e4da8d1612aa18f1ed6ece96e30d007280e86faeaa247c2dc5b431d9c1ce5971c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}