{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0x262c6baac448ca930a7ac0fdb5c2b23506535a0a834e1affb707e8290ad22a88",
    "signature": "0x7d29a74ff32528107c7f45c0bbfd3e645ce01d2e88eb49176965e95f1bb058fa6186cdd49613f7102e45b59b9631c052f01526c8be3edf93ae8bdaf9d1b5c25e1b",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}