{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172",
    "entityType": "User",
    "nonce": "0x31baed430ca7377baf16b2da7882054b78d86e967555201958a86dcdf0f1c3dd",
    "signature": "0x1a16e31e3a3f87b68930da168e2fd4ee93661437b3ab8bb46582c9190a23b64b5db6658916449cf5a0436a4b03f7ebea6836d069cb6e4ff0a22ca5023ae364381c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}