{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38437",
    "entityType": "User",
    "nonce": "0x9cbceca108f9b8c89fba673b9801d7cd4f76952f13e56010ac5c7ed22dfde996",
    "signature": "0xe95cd559c109b91a8ea769dc41430864bbc402733aaadd7fed570043fd88df6c43dc18cecfcd36d6987626e62b741a895aabff3c7ed23255a3f44deace0460a01c",
    "signer": "0xEba824e60AE7F4Dd3303f3881D36c4d4b9f1f4Be",
    "userId": "346741915"
  }
}