{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x63dd34834301f3718ea1a1b6b6682462d2a5d34dc2de1ffd5852f4c910688146",
    "signature": "0xa005f20a5be009c9fdc314f1f0cc72cf2e879bddfc0524ff4f5fd3191b3954f01cacccc87eabda57e72a5b53014e8fe743ee06aee25bc195fc2df878dc8bbf8d1b",
    "signer": "0x7EEA4019E9dB95f979519D331ddC1a98E28D24AA",
    "userId": "519084439"
  }
}