{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388520",
    "entityType": "User",
    "nonce": "0x064fd1a21c8a13205b3ec8169b6d2b665bcee481ba90cccd7d82c818f7964150",
    "signature": "0x10b6322fbdf6aa4d4e0a43200a9d5e84a74d05ed9f577acdc59cedc59ac14f5a77b1de67183ceec32a0bcc4928de124047740ae88c27b6af1bddcf1a6331e3131b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}