{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201227",
    "entityType": "User",
    "nonce": "0x45161bf8484e6e819d2ddb860155613676b6a9daa62cb187567f991dcb0ad6e8",
    "signature": "0x796f0483875101aba6ba5060f18b04156149e0042d1a563c67146729fcbaffb02092e68b078522055fa73e08b327e3125686674dddf5ccd342b79a114040ded41c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}