{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759112",
    "entityType": "User",
    "nonce": "0xf50c8f89de781a932df1d00b8cc9ea8342dec11f6173f204266c3eefc2d37ed2",
    "signature": "0x90bc545fb8382df7465ddc7b8e5fb97df302b281a521c6208b04b9a476ac933b3e872c62afc328ff000c82fcc127b159ab92b4ce7d9b2d9c59c25b51b57957c91b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}