{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124912",
    "entityType": "User",
    "nonce": "0x59f7bf876732f6482a2311e053d4fa171b0dc8923545b466103394c59d1643ea",
    "signature": "0x2b316dbed4ae5b4fba2fd63e8b563a216a6def6f7fc9c43fb7ec3e13d09c1b0c534cf79d9099c3e48cc5e9728f6ced44f9451eff135d109127e772bebfcf16b91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}