{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4774",
    "entityType": "User",
    "nonce": "0xf874e84a86c541f975a0a19caee2536d2e6bcf4593a99f649e69602099f29996",
    "signature": "0x107baea392d5dae408551d89019b860a6ea663e532c8bfa3cf04eeb986b8fba6644de702f21f4f6c7831c9bf37353f9f8a7db7b03f27bdf4513c191af7c02e4a1c",
    "signer": "0x0b58F8dac74F4bb0358429404884D7ED8240263d",
    "userId": "516258374"
  }
}