{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1422295",
    "entityType": "User",
    "nonce": "0xe63ac47212529bce75ca1489e267a2b9dba1b11084a4492d52b8ad61af341766",
    "signature": "0x0bf03f52b9f1abd55eba919efbd02cb9a70c2f551c65fe5cef83f550e8f0c9801bab531f63bb0cda0977aeca9e30439c0d8ce22057d01fb0f9a9efd35a444d031c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}