{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x524fbca31253d37b682849c7d4f08b8404f48c2c1723382b61482d42f1ec63d3",
    "signature": "0xa9470309677da7eac878a73c5691002590a015cfd393bb90bacf330dd52c73e52a3886105d6b6a21a03e31689a51ae2a72319f9a6d7963c535987ca4a8feff241b",
    "signer": "0x61d5f943Ff590F4D8d843bd8E5d34816513DE0De",
    "userId": "500234778"
  }
}