{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xfd491e7864f9a91b2d45f636a3b8987e961a8e5820aa9f225f278ae4eaeaa143",
    "signature": "0x7cc219ce1d2f28d4e42a706599d42f7a35c69619d48be09a32991c6278aee84c77d0259600a825840d5e7d6e64351e2aac0ca2b879bbd0ad013dfa800bfabd141c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}