{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xfb04e521a5f05fef69d8ecf66899c482d97160e2a0a208772eaf4d3bc4b25fe2",
    "signature": "0x509c3c28bc6c203fddff7b4d8681c2fa28e083cee08dc92961b4c33541ec475232f6a830c65bf315c2f0a137c2cc631af9cb4d31c6422d1bd4e999b8e1a8e5961c",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}