{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786875",
    "entityType": "User",
    "nonce": "0xd14fab4f5cf3f5674d6314b2d1eab3bca1016e19874b0009da93e9d9c6d603a6",
    "signature": "0x67f7e54db6fbb8d1f4470de0f79424ed4bb8b288042efb8ab0f65ad591a90a721310d2a25f8cd2b8b0f06b10dd352fd940b23f74d1ab10687fd8168ea229eb401b",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}