{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45518",
    "entityType": "User",
    "nonce": "0xc45d40cf011b1a958fc3c1db47131deaadb23ed360f0e90a50a8e2be57574de7",
    "signature": "0x97535979d1d2c2e78450c3498f6fe3385e98f5aafc86400d2c2086aa86b656aa0eddcfef36e56a964641f16c7155d9c2dc664c400c0b9394d84d962a4ff0d1e01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}