{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1456224",
    "entityType": "User",
    "nonce": "0x138925041d9afd2e8cca91f5436d4341f6ec0b5fdd9e00fc082abc713d7eeabc",
    "signature": "0x5e9410e7d75c35a81b3d809027df4550fde2639b78d3d61bc1ae129d3f629a727981245f6b1c73d014bc8ca0943e4cf53a746004f9504fd2d9ba9072ccf36ebc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}