{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "476619763",
    "entityType": "User",
    "nonce": "0x8c2ecf7ef6b27278ab50490373c1bedcc31f70b6eca8f29d889734993290d0fc",
    "signature": "0x490c4887fd12526a61020be3bfe58684a9a45a07aba167f337aaebd590a3570f4c7a52240794792b6563d6b844eb3cbbafb7e835fcfb42a2b7ddd88a18836e2c1b",
    "signer": "0xD0f51E232A92DDc965FB1FE51d04200D15d10fc1",
    "userId": "536634479"
  }
}