{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1413087",
    "entityType": "User",
    "nonce": "0x4103c82cf5d40db6104712d8a011b91c5840e77c329ed0d9bd90467c6d1490ad",
    "signature": "0x4b41b1820e52e6a3f9797c25e0d4001e98498628aef2ba0f5ccc64419b572795504de65c49b044579486da18613853060329ae190df0d11631ec405e3e554d6a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}