{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x84126be8d2066480803171d920909c72215d182eddb5dfa968013b0ac3f1fb4f",
    "signature": "0x8f1528f2f835bb2e57d1230214d9f19365e61f48b5560dbec71779af4dccb31d213f1249422696ba0c5f82233d2dbb2c1a944a16da8e472fad025e3c292c2a6d1c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}