{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445881930",
    "entityType": "User",
    "nonce": "0x63ce9f6f691cdf5b73cbe87f54e2095a7dcf95a88494c60134c83b8da2b95342",
    "signature": "0xc2928f8a9aa0c3106e891e0322434f31aa1367f40e944a70600915273293ca2a2375e4961a10065579e4aee822a9f0a2928a75e7f4a82c29aa11f91d20e70e141c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}