{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x98678f8d2acd6ba361868c68e4ed91166d8942b479ba65ffd879d543ebde1ce5",
    "signature": "0x9fbed1aae5081ddd3aad2f053d3eba34ccfc48ed84a42d3d37a1932f4be9e4150cc80cd55b627f743b3b17fbab8ac0681ac42d5617c6a8f35b593f7990410fb31b",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}