{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277460613",
    "entityType": "User",
    "nonce": "0xf84fca83e990687cde71dd24e84102c1298a8023424cee72dd6560498d364bfe",
    "signature": "0x3d69fad4a112c5fd8c8d40afa9e96935cf7664fefa5fff7bd859629a358c46ab135a4983383d7481589f8a0970d98d4376081d5cf19c57138107226e694b41f51b",
    "signer": "0xaa2CB6177B471a5D0091e2C63A74158138E912F0",
    "userId": "339970011"
  }
}