{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xd1bfb6a3d941f82bfc0e1f54a2c95974492f978806f177e98cf050f561d446a7",
    "signature": "0x88300403d9b95f33b16ff6bca9984767f7d363f49566ecfebc13ef1f47f19e4e618a7fa24bae4f46a6a0e5b1951c3a5cb88e49b34a933f4584deadda0f8635a11c",
    "signer": "0xf5B56F9eBC4F244ceaEcb2006Ef4eb3bD3C6112D",
    "userId": "459589619"
  }
}