{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "226321",
    "entityType": "User",
    "nonce": "0x5813f727ab51af795b9388d42063ccf58cabdc856c2589ef89a3d8cf56de38ab",
    "signature": "0x0e89aa44029ded73f7f6a84405252befa3efc4533338b4e8b3477e644ac8ea51096a30f4cdebe0023c4b712a83d5872eaa79dc12515e0e4b55d623053768c4f71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}