{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849836514",
    "entityType": "User",
    "nonce": "0xd65025cfd646cbcbaab32616b377a853773fbf4be6aac430fbcc3c0890a25a98",
    "signature": "0x2f343936776e669d72e2be3e2d2f5a9eb0b78665b66be0226d4a8f40571d5e8754b994126df8978a27ebcb07d3ab1a32567e7620e89334ed41c0389842507eef1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}