{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302620",
    "entityType": "User",
    "nonce": "0xc1868e7ca97a19ce8e8c9082d593bcf9df0f9b6826d044b0f2698f39071de3eb",
    "signature": "0xe0cd74fb2dc052818a04712dd98d4831688eecc5460473ede1b94d9982607a2b2e9adad3d1b44ad25614f0d2e7a50dfb1174c14872c28483a538f7d77b2c7a2e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}