{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xd5c9afb83d22aa17afe1e42fdc145f27f0e2581309770ec8f348d1ac3df39072",
    "signature": "0x7fb1b52e04fc32f9bc090eb031a4ab3427af6ae530f20e144a20799b2716c92941e4906fbf4aac055bef946e3e12625729d8cb9fae678a9dda183041dce67d291b",
    "signer": "0x5825943B70b58adf2D3Cac06E57e695F8650cFfA",
    "userId": "901870302"
  }
}