{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf1fb7731b0f717a78ccc4cc867f69c9d7435d257e7065eab6ee294607f5632e",
    "signature": "0x49d8149057b5c67a8baf2a9ce132170f080356c79a4612cbd034fb6cde06ff7a1d7296fd71276466ece6e519979e77da3a2037f32582ec39f07756f492a84bf21c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}