{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740180102",
    "entityType": "User",
    "nonce": "0xe0d6449b7860142332b9a63e99933be980ad2f4364e60ec3f7966038a19e9d39",
    "signature": "0x25d808a7349740a8524f1a7cf57cb0cfc3aa41e711e84d28625348746057597c4c87a98d2e3f03af58a3f87a89348ae9d179eaa6f213a25afd5ffcc2ace392661c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}