{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105821",
    "entityType": "User",
    "nonce": "0xe765031b9e97af6cdf713605901e9ad568089bfb50c6898c8320a4dc50a1d430",
    "signature": "0x3f3e3ae1c802f9a2bd1ad31df8ec7bf6b7f22b9019662199a5acd8e059d0151735d63f39bfc10c774e5aa069b0ce544257956e71497a030eb75ebb6382e8dd501c",
    "signer": "0xC90e14007305577f04e5F4f5542B2191bB2c7394",
    "userId": "1856608"
  }
}