{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5680",
    "entityType": "User",
    "nonce": "0xf002efa0ed6fec2f01d1e4dc3e6b2a9a27b779a3f6a0b508a04b2d68f9fc58de",
    "signature": "0xd9404432bfff206cf5c820aa4772ca6311f5074a8b1f49f4701be78f88ad1a5047f4afe95775e7423c0708a7ab59e127aca15c3a6807b6cfed581daee22da9241b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}