{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0xd8bb317e8a0e4cc05ed1ef514e00438bdc282ff1f51770ee5755f73ce58c1674",
    "signature": "0x1866186504922e19367cc7556be36d4fc8113470529448acb49fc7db649c9022128da778d3e02775a6eeb6f8e82198a26f56f493648da09a8539ebcb8f52b0d01c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}