{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5438e245274dece01cb9c69107d2d13301776a1da039269ed14eda88df033aa2",
    "signature": "0xf6a7d2b42995165b1acc0e1f371efd6220e3d3b3a73501cdee0fbd6e5a7592b65127212a474c3b09a63a433323c062e2240dcf846c116142493caa4b7e9b45c41b",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}