{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16564",
    "entityType": "User",
    "nonce": "0xd55e6dbc1e4fa0b1f6cc4b2b05eee5a71e76c4bae416f9d3f31272bac71378f6",
    "signature": "0x14b8d9c2dfd9fa4616f002488ab8e51e9cc0318c01213797ef7f3a3f92add9593da145adabce571a52d59a6b2c4b4fe5635d9e489628605d0cc461afff609ffa1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}