{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416697656",
    "entityType": "User",
    "nonce": "0xfeb8c4b4903c1d9e7b8b981414e179896e575b372760c14c7ddcc0e4e2981e98",
    "signature": "0xc851639ddbf83c6910307f59d8775716c6ce112819af4a440ffa877ce1f3922b3a329ce3daaac4f6f78cb6d4a6c4f223430805893f28df723b0fd98247c179b91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}