{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x44e573483d77d6694e07e19b9d8c3ef2a518f9d402f14d8bda053ddf100f72ab",
    "signature": "0xccde1ef733523cc5bda64e9bfc18ec9ff63739c03fe35dd8b89d669f75f489022ca347a448f8e0951517ac411235a9174726aecd65b93312c1485de160d2c7a51b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}