{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb2b3ee7e12a61ced4ca966a358f52f578216883ba493e358a29544ca3748ff0e",
    "signature": "0xb7ead83615a1b5b337f741f6c244c3de605c2b812f188977fc4604d5ef837c1233e42bfd8249c7b4df42f9e6abc6e1616d423957147074e1fcb1bda49cf4b8911c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}