{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41839",
    "entityType": "User",
    "nonce": "0xe31e8c5e9c6a42c74612f28993cecef99e068adb8343c8bd91c7322ab8e428bc",
    "signature": "0x8f473f355a94ef3c80fdcb705901a8271f45dcf80eea905c032169cc0224179f345770b36aae0f53665fb280d3ec71ca21eaba3d1181a1b06269707d5c06f9731b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}