{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x2a9d6b369c998a65c65bb5989cb2d9b7aac6a2e632247de6fd34ce094d7ecfba",
    "signature": "0x61d23f440ac7aaa0def99e00d5b21e1d344c2cacc1278989652aa2406e1b2b7f7aa3b07c63fad98b07a3b11548ad0204d91a1cfac058a8d76fdc5c7f69b4719f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}