{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151402",
    "entityType": "User",
    "nonce": "0x3bead45c8976cd0fd96923b628c20378b8313e86842790f9d59809febc1d6a14",
    "signature": "0x38e61d9ac1f16d61cf34f55a99355813cf7f93401f5be5f0df3bffd30b09c4aa78701d2328e94284bc9126a7d0450a11e05228d1ae94486d8f80c918d6fb99921b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}