{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16348",
    "entityType": "User",
    "nonce": "0x392504494b7a992149846f25fe32d7945de6183ee2021e2e7451a031e37ace8d",
    "signature": "0x3d564b987383361c45ef3c748d5406b5fdbf7461edff652c257ca34df66df706012bd0625faf9d24ab8a574073227909085e605d5469cf53d6659ccbcf973cc11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}