{
  "manageEntity": {
    "action": "Create",
    "entityId": "1999689678",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Inbox me \",\"entity_id\":1199753787}}",
    "nonce": "0x7ce704651a23805687f1b3cffbe09599cfd9adc7d7a51b98eab9f4d094249665",
    "signature": "0xdad34394671902edca76c9bd38961211c2d72c0211296f4859d8d3bbcc31208b6743c6bfb9c917d7b790b55a6244ada24eacefe2593116718a3650da27c21ce41b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}