{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310810",
    "entityType": "User",
    "nonce": "0xe506886d944953bb3277168d593cbbc9b5fb072082f193c8317fc8c46b3686dc",
    "signature": "0x8d136bf5657bebd8afcdca4285592c65156ec9a6842bc38a771cd77fb979216a729ffc8f6ffc6d2f10016b9800c165efa786e434d322472673554359748335c11b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}