{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57766",
    "entityType": "User",
    "nonce": "0x3e767deedbcc09a7c0231711d11938bd8ca9af03ca4a53bfdbe8b78560f1e8f0",
    "signature": "0xb2a78e9ecd1e5a1ba02dfbacb72a21722a183623fab58c88b693c901795cd05b0bdc88fb626a82fb40e88e7a8402a4d43d7883f0c723498e13f243dd469a71b41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}