{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0xe12490c6c619eb09d80357921a20f524c23edbfe08e158bf77baecc73c95a6ad",
    "signature": "0x3cd50c5ecc2f8878db25adfa040fe2d6865c40d83d3591e247f53b8ddcd221cb2d021e806b54c9e84d4fbe6f56e1baf3481d3d789629d14e37756b3428364cc61c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}