{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34f8c170505db23032b49a8884b64e19c12296bc0a73ada6d7f4da4785e4e38b",
    "signature": "0xee52ce042d52d49964ae21121de9375cd3449015f521d5b51291624198485f716fc02cd7d9583173c119bf2556c431042f6e22004d3ff16231334d8df14a7c3e1c",
    "signer": "0x4D040D6DF64f27D5075003520f79418826dD6014",
    "userId": "310855216"
  }
}