{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134021",
    "entityType": "User",
    "nonce": "0x4fd4f2dc5da0abd64e63a467a6cb7ea7a4404efd7c16891344e6b04a045db52b",
    "signature": "0xe337134bb9eda49c59dc4b06fdd07032ecbdc90efcbbf5960d9571215a4348a809110d18c4bd9c9b725de16fcc43ea2cb19c26dc46f96bafcef946cc8639cd701c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}