{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0xa5c774d30224186cab211e451255a9545c6435c4d63378156478874d01cd9c1a",
    "signature": "0xc243b3bd20fbff5eb23d22b8f8219f8ebf8f18a0627b215534570977ff768aa81a0fc4f7cd971bdbacc7f8c600cf4647b7ea7f0c24f63be2cba2420e16c9c4b61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}