{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348474",
    "entityType": "User",
    "nonce": "0x3037a4ec920cb8a182916bc1cca4425d859894df0a0492ced63fe7cc94dd7439",
    "signature": "0x7a0a17b70c2a86507ea7304cc6ab09b500676a1f6e522b61053a0c3d6ed36a667da278eca9e231fdbf6248551c2546d72cdc7d9d9783f642fd5788661bc5e59e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}