{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0x9e56880ef25e0b1003efac96d24d1f862d9266d6a68b3424805382acfbab064d",
    "signature": "0x8055be0f3d88e4b3ef03fa8752e05279a12b0edf3b95d36a7d6720258642640e0ed9c6a1019c3501280432ff8381b1ccc796b3bb9914ef498d6aba1f469af7811b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}