{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171546",
    "entityType": "User",
    "nonce": "0xe408c75eefde0066ef3319fb45d75d665470a2118f2751c38da889748db45dbd",
    "signature": "0x59df9827c0aa04a957e37b8a9dddf061f03616ab98251150a4b7ec1fdb5da7eb69f99ec907449e82902828e7dee17863f51f44455b7c63a8a31ab91733ca46b21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}