{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152771",
    "entityType": "User",
    "nonce": "0x955fcd24b94b8af00aaf0ef2ad9c463d4c99e68c8e5a7373001f6da60e68a175",
    "signature": "0xac62d4221e5ad8492b5449d025883e8a870c09bd3738349964e9b03756e8f57963711cb6b293cc0dc138c34bdc85cb246092e1741e8d7f75a214e50c238339b91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}