{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354607666",
    "entityType": "User",
    "nonce": "0x5591f884c73a3862ab267670e4c1d4c788539b87568f5256c8a2124f09d38f5d",
    "signature": "0xf86580aac9c617d7c1300a69ef171a83c038a279f993815fb340311fd0a3b7f7733d7fc06fef9244a849cd1a609372cdabe804cde27343d04ad016e768d13e641c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}