{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3685",
    "entityType": "User",
    "nonce": "0xe8ad58fa27f9a65cd98fa5fd20ab1eab4c442adbda6c8d991e1b127f7b7157f7",
    "signature": "0x082f0d571edcaceeb616229d3863d3ef69de2427ef3f11309c9a7f8657e088de32c17b4e9ae154e227c3a014adddf0f5a93b26ebbb9691b7dbec5085f208b1951b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}