{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0xa169437e10d20cd0c19b563625d30e3a3ed22bdd5a1206c344f6d7b884f13500",
    "signature": "0xbf19273aa9fda6bfa5b2bb740511ba99cacd148d587917b58a3f3162a8217b423c95167859280e49cf150002d374c5c8c6eae0e79f5a08fb2d56eae023fd0f181c",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}