{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15112",
    "entityType": "User",
    "nonce": "0xfc643f75e431fbfaf7c8edeb35a373a319ee480ac4af2369ed8d15dd35e6d1d3",
    "signature": "0x22f6f9237880a27bbbd7036bdd706429fe016669ffb60c5b721a0de88089ce871c010c26f8b821c00ed895494bfec314c775860a1dc9bc36f701434242cb9c581b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}