{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103994",
    "entityType": "User",
    "nonce": "0xcd9c95cd4b00ae6c6f9ed75443af3fadf71a0336de1eb253702278a684192afe",
    "signature": "0xb9c63e1bc71086cc74b6a49807cf816eca25d8bd4948357e4e0775eb6efbcefb2e8265a97b5688f6d45b77b790a9611bbd260e872f0a600511f4a613f1e57b2a1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}