{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123846",
    "entityType": "User",
    "nonce": "0x11d489a83620970f97e1516fbf9d120a0c9b11823b0ad8ed4f51aa98a7726bcc",
    "signature": "0xf71c924d382cd8f5161b778e5356c4bc1299fd2fa4d861cd2853b9f964defce7755286c4103aa86b9672da76293560f07498df2afd06722eac155e64c5bc04c61c",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}