{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341703",
    "entityType": "User",
    "nonce": "0xe32f054b1d680bc1d3d5e5ca7100c0d58238bd273ea8c5937c247b6243a6d31c",
    "signature": "0x426988eea54289f585a424d25d05dbe7f723b9d89a56e1ec55a8b0bf44baa2ef43b84531b8826a4b0ec7f269436729e7e0f2332a9b96def9406f96a2ecb817541c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}