{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xad5f99e41d46fc6968d962287011fb914a6d711220e8cce8c1e0a6eb156b4d93",
    "signature": "0x2e2886c6d985892d9e8d58b8150be148ec8e675e3d0927c838b79197b360928160567445464dcd88ebc36fdfb727ec57e6ec94730cf35ffa5ea52f9c50cef1351b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}