{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251843",
    "entityType": "User",
    "nonce": "0xad12f78f1be9fafdcea4b7f8a83524b586aead69869d5d9ede8b9b1a66cfcf51",
    "signature": "0x50d3b45475dd8b0e8a4adb1c1d9f3eb1b0b98702fcb5a6803d0356ecf02f78e53abfa2e3b37aa823cb46ec5da47516dcc74e5ff1c095896096a0fc56f25dfaee1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}