{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842627272",
    "entityType": "User",
    "nonce": "0x99afa26c37b682f0444fb635a4ddd0f5c2ffbbde4a3eacc649c81e7e2c560181",
    "signature": "0x72c8f430be432b6f2624246c352ba8c207cf0c5c4422449dc63ff9cf4840020469ac075a847458885a225f5321b5946912cac1c79535e140667ad7bfff812f7f1c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}