{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x356c01d91c478b357ab6338b6f36e8a4935283924fee778fa1fa4c53eb8ef2d0",
    "signature": "0x6598fd3605106d60b8e398ef45650106510ff7a04380ca56b0851fe5293db798059c5fac44b989554363cc002b723a012baaca7e1e71da83c8d1eef9152a2b011c",
    "signer": "0x5183F6e0300007e994a67bba9e2875303ac6dfad",
    "userId": "172638853"
  }
}