{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107540",
    "entityType": "User",
    "nonce": "0xbc2b06c77b31f850a531a34a80943e24a2d92b4525c685b6f58b3ded5df09104",
    "signature": "0xf8dfd7a94976117930ee2f5be75dfb9b66f80f91a2d25b40a97c7b8c0d1b848420d3e3d989153281635a767ea3f5c949cd95e8b75293a91b019c6a8fc9d0a1091b",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}