{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "969012944",
    "entityType": "User",
    "nonce": "0xddb1f8389a53a55dc9051c5dfd3e9f6f84cec0b6380c2694d64ba7a28e9bf893",
    "signature": "0x5b440a88a739d633e4f52f6614800bd984ec901aa90555a60fd3265514b572894d290dd688fbcc65527e5a644c7c923e34a99b4a46abb685929216d3a72598571c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}