{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x7ca08ea010a3c264c1a1f64ef9076e5b62d9d408136b3bf9460ede604281db58",
    "signature": "0xcc9fbda2d204fc15562482e01958b4817d3ee6f7e754f52af93edc5cb8f6027d14051196a9fd60c1486f4c5f196b9923971b669a6cca964c631fb5d69ea313b01c",
    "signer": "0xb8270662869c6e1E7EA8A4a51AC83ceca88D2476",
    "userId": "314054174"
  }
}