{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164883",
    "entityType": "User",
    "nonce": "0x457fc6e630ae6b8ee98d58dee5cf11e79350d865ce2a907edbc2942bd5e227ad",
    "signature": "0x648a1471cd84bc49638538f0f2eb86465147265ae36013a94d799e7571aadf8505c489fde73acfa8ec7b858807d2c4e52a28a59392fc9dca3059f0e9121fd5d11b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}