{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0x594245697f7ed10162c86ece8181584b5944cefb3622167c7071a39c0f2e5972",
    "signature": "0x15fb8ec7b366334bbb92742dadc181c2676ba2da2661fd282a835b49189f5f1e7ce350f0b5d7c810ce4c1e9cfe3dbd60cd4ee2eba30091244ef67d59623335161b",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}