{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28753",
    "entityType": "User",
    "nonce": "0x5440c797b3607a0e892d24cf8b21858a996f81374f862565fe9068986c1f3cc6",
    "signature": "0x513d0315d5063e50602bdac7d1a066077feb2d36a70ae42f31992ad5402d9fc063df227cf0cca974fdaa49d8e7730687bf0a3162c9b994b7a971dd13b9a587f11c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}