{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12615893",
    "entityType": "User",
    "nonce": "0x92871ee65d177337f3162024094ffdee4b2be77d1fbb65c0b8f8c603bc3a3653",
    "signature": "0xdbdc59ccf7d7eab01a3973ccbe434d7df1831ba4189ad106d552e866dfc287272e5183cff466793aee1cd6f9c75493342580093a671d4ed56eb44f04bb6d8f761c",
    "signer": "0x354889EF161222462763C44a53D025c1483b2d01",
    "userId": "228063281"
  }
}