{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77b77c94ef84087f13357905221e0d856d4a14bb7299a15644fbc26a1313f1d7",
    "signature": "0x42b4c5f0fc1a57ac8922924f9f4647241c2525a52ca20a1916b0b6731feaed5d22265477788eac11f34cda84d2b7ca115f36429de52266bd08a105d768304ab21b",
    "signer": "0x792De4A933D58caeC453af0D2e578D12C0eb172A",
    "userId": "190146004"
  }
}