{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0x03df368d4b0d617e7548dcb30adcbe6c5d28e4b932ca4d374316bb6f129b4b8c",
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    "signer": "0xc878B4B950D5e7cbA81be80233b56D3a13e3c7eE",
    "userId": "61025846"
  }
}