{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357120",
    "entityType": "User",
    "nonce": "0x6bfd8709832fd026e6c2181dc9e2331079bff8be416c7d09254d79c6eb08902a",
    "signature": "0x3356d4101073bbf03a96ec72eab156d3f56858ef2cc51a63b69cfbe7d0b222b3188319d4622eb53bf640a434c69939f45af47e712fd9b3b0eefb67760743d14a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}