{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "481960824",
    "entityType": "User",
    "nonce": "0x4fba98cfdb4c753ec2bb8b32d7c7700ac647fe2ed29902e651585e56924ef406",
    "signature": "0xebbeca39b9dec72839e19cf54309c4709056014af6ca954b0c482c297e9d5cde7a6c2889efd0263f7cbd4d43b6258a756eeb811c8a6338c951b3bf92bcb5e47e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}