{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x3e36206b8f10cd5e245fe0d40bd2d8b0d6ef3bca29d11f8c487f59106426745b",
    "signature": "0x6677f20fd82775a121783e0345444f41505e942b46249a616d62b1928f7d9f5b0853260705976f5c89381c9ab90efef1c6a6d25b8e5657970dce4c5a527eba161b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}