{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc22b2d324d80c656ca2540c9083247a7c8741bad34c2e1ec3d965590fd9971b4",
    "signature": "0xfe92a7c28ecc41aa7a81f9313f0c82528ae95fc035a3085fbdda556c9981bd7f49aee5eeede23d860cf09ee72ba433de972103f712f72dba63de5b1fd2eb64dd1b",
    "signer": "0x5D33dA4294962c23DcAcF8A292aCc76C3D0Fe119",
    "userId": "758264219"
  }
}