{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x118ae2e88f8c1f16aba96ada72bdd80993589f9cb38db2a045be30246af89f9e",
    "signature": "0x9ee036d31459c4e49416890a7cbfc1f830a4a939839bfd45f63e587ce16ed49a6ff015fd700d06718e64420c86dab83e14c6b5a8461945d450bd731ea613ba761b",
    "signer": "0x6AD8A511f55a98F773afb33eC22747a76AD9c2D6",
    "userId": "915337571"
  }
}