{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994054763",
    "entityType": "User",
    "nonce": "0x943385212375a5bf6a75fcab1ce95e531be93ac908d971bd9a480ec8d2c317ea",
    "signature": "0x8b7135b892d3d55ad5cbc2be3709e8af4a926414f89fe376028fcc1f9756d3ea5cec91438d042f22abdd0a6bb55626e8181fe215b675df0a78b8de3d87a91a451b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}