{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ecd33f56b2c27cb9240b5b4f4aea4d48891aa5df63545777b3246021233ca18",
    "signature": "0x39503c3ab3617b0d1e359fbed9619d5ae9a5fedcb5ab394eff59f72b031d5b1a39ac85dc2e8013cd1dc64ac71d91e6926f4e995a7da6c3a92492580cd5b9c05e1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}