{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13577",
    "entityType": "User",
    "nonce": "0xf7212cebf03c14664336baef28a4f4e2a601671bace05991d95bc83d8dbd24c9",
    "signature": "0x5aebb02e81786ddb85bfd6a5c6722985f27ad2cbb0c210505437b775a078f658533bb32609c1ae6bc1ab947b6fb51f71db15e322ff60e852bfd9cffc77c3e3f41c",
    "signer": "0xa7784525683A4174d8410859134a1a6BFe4c55E1",
    "userId": "322432902"
  }
}