{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330003",
    "entityType": "User",
    "nonce": "0x4533282b224c03af6e4396141ce8ef3d79edca9aa0b4f89d7ef1d0fa0eb86cb9",
    "signature": "0xa2e03ad1728ebb22979b4e61cb0a1bceed9f9223c915975b6044a330396d684237f645c0596a2571fd86f46c6dcf425f7d61ce20ebe6c8426e9bad7bc4cf492e1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}