{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141879",
    "entityType": "User",
    "nonce": "0x5e8c422ebfdf9e036374806d3282cf22cc8489907da9d55a044f90379fa1ba00",
    "signature": "0x04101da14860ff0518f8d3232ccebd4134b7c4db8be02bd9b256624faa55189461d0cc5768d6c05052d5c8da2ae0153edbe263d54669e144a3caabe638845a8e1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}