{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906687997",
    "entityType": "User",
    "nonce": "0x1ae741ff83c8f763149bd0bd2d8d82274e13c211349a59d63083683e26ec82a7",
    "signature": "0xcd3e4770c9aaa498bd94bf0332096e646dbc89183a39625ba2496f16782338f922374a9b192ceee6e7703cc31f97eb4d5657097f5ae1243f23530dc533a052b71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}