{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347281",
    "entityType": "User",
    "nonce": "0x9d0a74f24a00c1e7c4c51a3499a4f66e54f6c3f86ede882e51486f41df00eae0",
    "signature": "0x948e3f69c6741b9fbeeb2eeb88eca80c3a4d5ed4f0b8076375baf3a62fe827ae20f0f6b5c4673b227764f1d0ccc401949cd73c996b700dd83647d7fd5b6821e81c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}