{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0xc52dde062824fd903437c8069467458a6bbc53c7af70b9d0cddd110322559f20",
    "signature": "0x33edc91966dc061a4690b1da22b1f1fed9075e96009b81b9fead1235e31cbca02b5db3a1c5ac9f75daa0ebf8b81dc89b5b5ee49e19454596bbd0c44d3b8779471c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}