{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10668",
    "entityType": "User",
    "nonce": "0xe903653d6a049a0741115f6cfd023e6481f811a2f744fd0b917d3d63271e33a9",
    "signature": "0xe3ba4305554d786b2e5e8793ccdf03a7ab6b21722f39e62c5c7f462754ab36b0163c50e2ee735f50dae73cb1067823c48c87f261db2dd2745ffc3842e9b7b9891c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}