{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x243e23850f3a4ce2072981a4129dfaaea73be980384680319cd6b48cf4031fcb",
    "signature": "0x935b55ccf9cfe7d70b6aa6539cbe715dee8fd9a1a2f9c9f49e4da40b72ab90660d809db0c6238ac811a72a670f8e043cd40004069e14aa3a4086caaef290b3bf1b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}