{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67537",
    "entityType": "User",
    "nonce": "0xc2382deeaec8ab9f86db6d93eb5e3fbfa27fb4cefd97f287e08e6564eaf555b6",
    "signature": "0x49d63dcc9ebbff3337d345cbf41844b5e0e47008ddff54aefd0415088b4b738a5a2024f29cd36892066becd5a04f9c0a133b0301de2d31f24dd78839b59585571c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}