{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0xe4dd17a0f8a2644567c07309fa073c63818d4ce5945761f03baa0a2318cb21fb",
    "signature": "0x190996d4363e674e6d931479c7740e16bb7d3c08a748be927a57f86989065b994cbaab8ef2655803bf3e4e2738dc429f4fa725b28dfdf1a2529738884077757c1c",
    "signer": "0xe4ef0d36c112017cfB32ae9F7285AfF3CC333609",
    "userId": "566234743"
  }
}