{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0x00c75d810e6d90e414eb735541c4725e409e43a44419e7ba8eebad22e13ddad9",
    "signature": "0x16fc63f3b37dc3107e11ed44b346fef07c830e0d217f6d790019fbb85a61635765780a9c530671dd9cdebc1c9990a23fb5fd22393225d6620dbf6b8f94376e3d1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}