{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219455",
    "entityType": "User",
    "nonce": "0x9c3b2017c1439c317a8cb64f56792cadd87a095e4884b1e9a08c22efcabfbf4d",
    "signature": "0x91ba06c6d8df0b23674b480a59e317af1f11b059ed7477a710336ec0ff67382a2688155cf0ffcc300d263b7c5b467388283808ac4383acdc0c74d0c1573fd5871b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}