{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x762b8d30191a2bf17f7516b91bc9c97f82465721fd7edcb5ceb912dbea44600a",
    "signature": "0x51d2a8a57fff3cccf121abfa0b91f902a693e4b7a36b9b4240e0a28880f24eff1bb1bbc6d52440e9ac92e51dd31042ae60b68a3314cd036c5d9de9e34eb7ccd01b",
    "signer": "0xE727CbFb9A37eca68A1407D140597aD8ec810d58",
    "userId": "12804287"
  }
}