{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0x208665be53354fbb75a0e6897fa5a379c2f096825fb90fb7fb43db3b5dfe0fe7",
    "signature": "0x300d3157cdd491796fc7ce66b4d201e976df38671f3001de9959cf31a2b8449027dc186e281dd0abeffc7c77eb45a090bb6bcc2e23047a4f42353f7d1f089a4e1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}