{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54873",
    "entityType": "User",
    "nonce": "0x726a97533176b19279312eb59af1897e7cac0f1edda8776775e4fbbb92aba623",
    "signature": "0x7066335ae46ece539ed2052cfe88af34ff5f0eef3e7c756511ac260fa01e6c385557bde8624fcab7aed892bc8a9fbfac7829ea42dd7d7ae2be2977eb41ade4ac1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}