{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302385956",
    "entityType": "User",
    "nonce": "0xdcfb97d02aadca815628798ac43cb4d18fccda33697d8139f0b02a4771b8c0b7",
    "signature": "0xe91f29fa185efec3d39fc4338a80a4105a1bc30269383e04934de3d6f5ca9d47717e527527130eb6ec43dac6211a154a0881d249531500df24dd1e5833bdeb7f1c",
    "signer": "0x4D7d71b11CDc5134427DEe9E150Ae1eA8a881a20",
    "userId": "523512173"
  }
}