{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309414",
    "entityType": "User",
    "nonce": "0x9fc2a87c911573d97bfd019e8c6aa4f5bdef57d8705273a1abef82f41de67007",
    "signature": "0x36583e8ac6b62cdcc1b7577cdcdfe57ec62e1ed3f375b795ccfe5c66f55df3322482417a0a0afc3b0df81def49bb065907d3e360d1405953e1e51fa107a3204d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}