{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x7ebd922576fbb5f1235e3c201148be734b7aa426d58befd8ef99ce453cfeb453",
    "signature": "0xa874041f0e43b126d49b9cf508fbec259e65cfcd79d97fd81204cc06ff4dd20b273ae79ad8f78d5ac5431dfc29ed8b460b806075d3d0f77a83816fc8b694c4c41b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}