{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136457",
    "entityType": "User",
    "nonce": "0x7b2caf6be90776e29132f780ceaa225efdb425216ef51aeb283bd0a488cb6259",
    "signature": "0x4053d7f7738306ad9bb60adcabf813e495bb19fbf79e6ef28e2d0056df3ec14a7dcc0c6e2a16c6d7edec1debb792a8c78a805f7f16b817e8ed7eb3a8d17dc17a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}