{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1391666",
    "entityType": "User",
    "nonce": "0x987d64c79c5f60dfeebd73c12ec01dc090d920a67a5b1fbfd67b362f8cd21887",
    "signature": "0x2a29288c556ecaab1e0c13124ad6f763d0984a6472462c6e111fbbf9f8fccf9e408fbe49f0114451c2d2e11df37074ad3c2bc47e64806311ea71adcf28f347cf1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}