{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740892",
    "entityType": "User",
    "nonce": "0xd8e0c97470b72a936fb074c7961803c271c9734b93b58c20a10d0cf1d1148f0c",
    "signature": "0xed729552e504052b5f139b5c3b9cc1d695979f87a5b6196227f6c64ff49c146b6fcead3375b6be27a7ab6a14de55abbb404d3b1af1cf3e4e856a4f5f1bbd7d241c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}