{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150637",
    "entityType": "User",
    "nonce": "0x0ee998fd35e0725a0b4794dbdb11ae4e2b27e5a8447e5988e50d5522fa6249ec",
    "signature": "0xd999b9c16ca9cfabf79fcb5e4304b7c73952140d8f0dd0a75d8f7db9504e63000d62cc31b50c6c7908062364fd0ab86fb4dc5c56285b30c76d15b0575dcdba481b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}