{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x76ef50ae57db9e969ca93a6318438112a3215c9aeb44a2e0107a2af3f0cecf91",
    "signature": "0xb602b4d5d68a4a1b4636f3a4a087bdcaccdc5c56c35f2da3335504042503805c724ccaaf34a30b21f028116358967a4c18f881b6882bcb1f9583bfa105c024b01b",
    "signer": "0xC77FC375F0505f98061bDD371Ad3b99D16525d71",
    "userId": "187154748"
  }
}