{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385616",
    "entityType": "User",
    "nonce": "0x7a1c86b9ac96234b4c807e1c2fc10863fa7604a3a1a25b9be48abc5f89bec500",
    "signature": "0xb92900f54979daa9cced3073252bfde1bd7656442352e00e48f3d572cf6a39b30e2011d5357bdbdebcd43513d55209ff1e2460d2396cce427e69ab5f963c715d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}