{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124241",
    "entityType": "User",
    "nonce": "0x43797428769602b3a55667c642f982d9ca544ef52f4618da23fc9b940055b333",
    "signature": "0x18e23c638f5a450ca5aa19cd6fa55498e677a9e0518135ca1f613767ca9245aa3cf55dd6dbe512e460907dc9a5cc6dbfd4307c046a639da7a0eded839fb3b6481c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}