{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x5cc8d9d1b8ed7134be4aab38f862167dfef9d746adf1ea4c49075b775e187547",
    "signature": "0xb384ab77459ac94c6f761e8ae38f41009d71c389d270a6fa0a97fd52385f6ba94c292b3e77a679e4c48feb3a9638dfbe3b9a899e55c54170c8fc0b6a86e9d7931b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}