{
  "manageEntity": {
    "action": "Create",
    "entityId": "476926220",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"cool\",\"entity_id\":466716348}}",
    "nonce": "0x38e72235a113b2313477590ba0d873b32587eefc79f9272706cccde400b5034c",
    "signature": "0x7b93ac998c1a536f3b11e18f872ed837d9725f471a678ec79444c942066979d9343eff1eba89d0422d949876c2669fd0a9c91140466c64f7d1169e92a64afe561c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}