{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77214",
    "entityType": "User",
    "nonce": "0x7e3a298766c98e3e1a8be5dfd19048e6ee0da1fc8d000ea36f976224a2478dc4",
    "signature": "0x4abd612aaaf88b6337ef071822ce1df350dc19069a852098bdf4cfb61e3ae17f789a5f9c72a03074e768f362887c6911056f55f19df5ec75ed79078b47f2f7961c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}