{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0xb6dbe8b919f25e29179bc390481ccdddbf62221302cc620bf46058cad7b3e304",
    "signature": "0x2cdb8a1e0c47149402d6efe44a2a6fcfd159b39d44f41232e3bd2bebe91453f517b3553ee3cb87c0ec0453c13f9aa65a37035f10cda5abade9456baff12141641b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}