{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "229674",
    "entityType": "User",
    "nonce": "0xcb87385ee7cd7a9b769a01b3d6029349d73d1c64f05dad7022fb580200288c03",
    "signature": "0x81470dce2e37cde76816472aca080067a806a6d7cd5fdce0e364f9af4b86bb2131bce47c75999f83079c948f3834596940a9442f1aae7a1f12bfbcd805f825fe1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}