{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe415a792b35542a747ca9d7e96a3b4945b733302b6c5a28014536c5faa6e983c",
    "signature": "0x8181f1b8a835b613a77c28f73ae7a009edc013e524f7b0d3cd4d7dffd1dacb713a3d8eb00ba0d3a9bf75b4404690dd437f7e1959ab18ee3176fdea9e75c6a5111b",
    "signer": "0xdab798e02D67Cc9f1a6557E23a81dA4686Eb4510",
    "userId": "612527006"
  }
}