{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "69410",
    "entityType": "User",
    "nonce": "0xff338d6cd1a903ec6db504aeb5bd04a4b15e230f9d6128eb6b9b6ed6ca9b1154",
    "signature": "0x2d49b002cff28e9fb8c018fb0e6f5dc640a373c72dbe47944f0fe2026219c3a30217a4d2acfd59bbc6255d0ff8c4efb7316c2cbdf42d49d5f508ed05a0b717711c",
    "signer": "0x7b591BD45F737DE2A731fb88D1fB7E15A7593a34",
    "userId": "535988268"
  }
}