{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984259712",
    "entityType": "User",
    "nonce": "0xeadeb44cbcc3d83ec54d6c91add89ac84851657a87d902e93b9ef6e78f2ea09a",
    "signature": "0xc73ab92df50a869758d9930c07bd0957840dfec199c5e374a916f4ea214d112747b3965ba6e016cdf1c1b300923633a1652307539d94da3e18a68c4c5216e1d41c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}