{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381638009",
    "entityType": "User",
    "nonce": "0xd5e565994e90607e7307b753084d1f14c3caf33f6ce5dab40d680ba85b00a531",
    "signature": "0xad98ee1009ac0bd43ceef8978cbbf37a82d8a4beee954c91bee346a41bfbb1013c2d7865001d3e2d7a92a59a0704f41c85f266f9ba87f7fe16dbf0344982d3c31b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}