{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158548",
    "entityType": "User",
    "nonce": "0xa6c692ef3ba1904196693902c440c77fd383704f6cd05775ed73d22d7e485147",
    "signature": "0xbfaa840e06855ce7a9c567055c4186785c4491abfccafbcfb80f4f4f96017c967f3de255f39b12f3a3939b695157e9724f23362eb33874b30e9fe9967b1c52c31b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}