{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271957",
    "entityType": "User",
    "nonce": "0x282fd24fea76e2b8c8de1ab56b82b4b4abbb8f0d3150e75595bf8e7312e62398",
    "signature": "0xcb05d30a92ca863fe7c2aa311ff286da4bef31393c4ec0a31699b7095c65082228005aea69cf02f0442560f5e28af35833ef0c9fd0f66805310417edc245b8f11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}