{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0x3740154fbe0a1eee21d33666944565f07b7c410164124297ae565875802e2909",
    "signature": "0x2b5b8d0101e6f6dc72790affcb6b0c1a37b588ce717870ee8e6257c814389eec7ed5874d71121b70feba4a9944bedb030f0c296c508ba944bef503197fe6549b1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}