{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "929567155",
    "entityType": "User",
    "nonce": "0x8c950a51990311b8a694d6298211d6fd8827117c3547900f82a58218d5ed1e36",
    "signature": "0x7d97a19e3bc349b6a27303292461762287e2edffd456ef09af8790b76d586693525cc5ec779da8d1a9aaf852da8e05c71ad1d73b9dde31089cd605b326aaaa631b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}