{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "249972",
    "entityType": "User",
    "nonce": "0x50577259e0fd61b528a0971bb5dbfe72cbbe0c01b048283570cc2cff375a2238",
    "signature": "0xa13470208924f327584f34b4f3b9200bfe42dc23345509682512893c8ba84425244eb8890aeb6bbff2b03f799dd0190fec99d37d7d5bfb0912c6b62cc362c6ab1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}