{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297609",
    "entityType": "User",
    "nonce": "0x97c069ef3558f0c73a89f1b1333c6ba2495a97a4735ebbea17bb550a9e8e1eef",
    "signature": "0x122af4c2e2c5f17bda5469b8837fcef6d17b882450690b46e9bf357c0207019851a36d5db08519c66637beef74afee017b5375f29c7cde480d6afedffe5b05811c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}