{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xe34ab4c80e43b7816e2bbaaba00d2efbf73e6d3be1844421e38c1e585ae98a33",
    "signature": "0x0bbb34c438a6693cbc1e7ced4e03416d294110a71b2a32037557fdfadd07bfde0d33d6731f5246dd731a498ff4a61713433920f93810c67125746bbf57a3b5cf1c",
    "signer": "0x45bF43B2249eaD8735452629EBF9699021a99196",
    "userId": "624817137"
  }
}