{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64038",
    "entityType": "User",
    "nonce": "0x84e3bd0cd5a07a2396a4c7cdaebd80191b31eb1f67608cfcfa3cccf71e57737b",
    "signature": "0xc3dfe6e02ab330926d7292049cb5644f5a2937169d0ed7a165d36d396820811c46b505b04db857180f69ddef1054ee9f07da4a576d276449b865c8d323fd08b61b",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}