{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c1bc8e48764053c6f32fdf6b3ef15165eaca23d9251058492fc1553b2f19455",
    "signature": "0x344afe0183f1584a0d23a85d9d3d9f194c9b09fa6b80ac747d770bf735d20acc464810136efa8a34fd950b767127edce2f1a26e8fa32ea2c1b872c9bdd28e4211b",
    "signer": "0x07D513F4eF8aF3fd73093aB1F613ac2B7D16b7b9",
    "userId": "60831583"
  }
}