{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0xed2574439b73c74423920e6a2da39e2229943c2692ad087b0587e848e7a36193",
    "signature": "0x355863463c39c8b14b7e95b351e877184ac2e534b0237ef15891452085ffe8df117724cc140d45e0bcffd3b2a2b92cae47c17cc9b0e4cf39edd614d19c00e5de1b",
    "signer": "0xE18f37f193553F7bFB76f10C386b65159Ae304E0",
    "userId": "4510"
  }
}