{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19702",
    "entityType": "User",
    "nonce": "0xfe5df99ed909b5bc9ff6f274cbe744b8e82d744c7d3b027fb26cab6c21aae548",
    "signature": "0x478788b81c829f8515e0b57d1c2dab2037924615e532348d9cd0ef0b7a65c8ca0d4999384af95fc2222aac93d4ff5ba1c4190e6c4d659758e5de1a2af58cdc081c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}