{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd2c4f759c92dd2fbfc0381bf14eedc8c7bcdd44427534fe710b15a968f69955",
    "signature": "0x6b5a7119a7165e01ea2462fde5b4fbd7a975fd94a3ca836d6fb8bf0af4c294f6092e951720ebe90044670a96960c5fc3b5bc282d3e49c60fea2d7cef2447a4761c",
    "signer": "0x50b6162Bcc6011dB499a6E620bbed1838e3dbAc0",
    "userId": "10605111"
  }
}