{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x93ea8a3244c5b51f85baba7eb9bd996e3420ca57753d4aac5ad4e9f60b26d45a",
    "signature": "0x17868349f3a96e8dc3eb84aee9dbcc2b0740fdafd510f4f66f9d46d4fcf9895e20ff776bf053f3c5ffe29bea9760bec949d26c413e9fcafdb2d4a060d28e487d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}