{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142655",
    "entityType": "User",
    "nonce": "0x7928f914b26376721ec291aea027abad3bc4035dd41856ba387ae5b43cb40517",
    "signature": "0xf5a65405319becc52b54a3145315b5bb24002a354c173215fd7bfceb3e58a9212e2eb2eb84021d76fd62aefab5588f33f4be3a43ff4e128e574dfa1bcbf328911c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}