{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161531",
    "entityType": "User",
    "nonce": "0xd38ca363d8ddf39d39a9119bdd82740dceb0b7de047ae9983ec35c4bb76d8c21",
    "signature": "0x1b8c34f98046030a61ef2f821f5be8c0f727615aa980abcd5d83c06a37fd68ca3ddd0cdbd8a1d3a12ce9419d0a8c9aa835622095e2d85cf6a4a17320379cada21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}