{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0x6723cb864a1174a1b6da1da8d63926f67d32ac9712dba315224295ae1ea5a15d",
    "signature": "0xd6a1e6cb8b9126b1c73068c17848bc4be5176dfc017a1f6ca6fb38296b4701496c4f9b25ade34d9a2b8426b31d3097cfd1411d3f887b5f403bb310b3571f9d0e1c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}